EchoRef6.1 - App Store
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Publisher Description
EchoRef is a free iOS ultrasonography educational reference covering point-of-care ultrasound (POCUS), transthoracic echocardiography (TTE), and transesophageal echocardiography (TEE). Additionally, it contains cardiac dimensions, native/prosthetic valve measurements, hemodynamic/ultrasound calculations, and lessons ranging from interventional procedures to mechanical circulatory support.
This app is intended for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you may have regarding a medical condition, and never disregard or delay seeking professional advice because of information provided by this app.
About Rishi Kumar, MD, FACC ("RK.MD")
I'm an adult cardiothoracic anesthesiologist and cardiovascular ICU intensivist practicing in academic medicine. I'm passionate about teaching with free, open-access medical education. Learn more on my site: https://rk.md
Version History Added: LA Volume by Biplane Area-Length, LV Volume/EF by Biplane Area-Length, Regurgitant Volume/Fraction by Volumetric Doppler, Aortic Size Index, LV Global Longitudinal Strain, RV Free-Wall Strain / 3D RVEF, Pseudo-MAD video
Added: Measurement Guides to the calculators
Updated: Implemented related-link improvements across the app
Updated: Improved performance and search algorithm 6.1 Aug 10 Updated: Completely refined the interface to better align with my other RKRef reference applications
Updated: Improved search with synonyms and category pages, added related content suggestions, enhanced notes and favorites, improved calculator copy buttons and list sorting, expanded the global toolbar, improved analytics and analytics controls, resized iPad anatomy and valve images, centralized links and note storage 6.0 Jul 9 Added: Global search function (magnifying glass in top right)
Added: LV thrombus POCUS case
Added: On-X mitral valve with stuck leaflet and mitral PVL plug 3D TEE videos
Added: Calculators for aortic pulsatility index (API) and Wilkins Score
Updated: Small user interface tweaks, codebase optimizations 5.9 May 19 Added: Calculators for Aortic Valve Area (Continuity), Stroke Volume & CO (LVOT), E/e′ Ratio, RVSP Estimate, Bernoulli Gradient, A–a Gradient
Updated: Calculator descriptions
Updated: Restructured cardiac equations section
Updated: Ultrasound physics and hemodynamic equations
Updated: User interface fixes throughout the app
Updated: Matomo SDK to 7.8.0 5.8 12/22/2025 Added: Hemodynamic and ultrasound equations
Added: Highlighting text when searching
Added: Slide to favorite or unfavorite calculations
Added: iPad interface
Update: Reduced boilerplate code
Update: Fixed native mitral stenosis values
Update: Restructured changelog scheme
Update: More subtle liquid glass for references 5.7 11/10/2025 Updated: Complete re-write of the codebase to transition from Storyboard to SwiftUI
Updated: Conform elements to iOS 26's liquid glass user interface 5.6 09/15/2025 ⁃ Added: Paravertebral nerve block video
⁃ Updated: Lossless compression of all media elements
⁃ Updated: Rewrote codebase to utilize single structured tuple-based arrays, eliminate unnecessary UI updates, streamline switch statements, etc.
- Overall, EchoTools' compressed binary size decreased from 208.8 MB (version 5.4) to 84 MB (version 5.5). 5.5 03/10/2025 ⁃ Added: Dilated coronary sinus (PLSVC) TEE video
⁃ Updated: Matomo framework, consistency across strings 5.4 06/08/2024 ⁃ Added: Navitor and Evolut-R TAVR valves
⁃ Added: Pulmonary velocity acceleration time (PVAT)
⁃ Added: Concentric LVH, aortic dissection flap fenestration, and quadricuspid aortic valve TEE videos
⁃ Updated: TAVR valve information 5.3 02/18/2024 ⁃ Added: Air bronchograms, cardiac standstill, and transhepatic IVC POCUS videos
⁃ Added: Septal myectomy and P2 restriction (type III) TEE videos
⁃ Updated: 3D TEE tricuspid valve video, 3-point compression ultrasound for lower extremity DVT video 5.2 12/31/2023 ⁃ Added: Proximal lower extremity DVT compression, left pleural effusion, and Tetralogy of Fallot POCUS videos
⁃ Added: Perceval sutureless aortic valve
⁃ Added: Edwards Mitris bioprosthetic mitral valve
⁃ Added: SVC collapsibility index 5.1 10/12/2023 - Added: 3D TEE mitral annular calcification (MAC), serratus plane block, spinal cord TEE, and type B dissection POCUS videos
⁃ Added: IVC distensibility index (DI)
⁃ Updated: IMH TEE video, D-Sign POCUS video, IVC POCUS video 5.0 06/06/2023 ⁃ Added: Femoral vascular, gastric, apical long-axis, apical two-chamber, apical five-chamber, and suprasternal aortic arch POCUS videos
⁃ Updated: POCUS subcostal TTE video 4.9 03/03/2023 - Added: LV diastology image for IVRT
- Added: Libman-Sacks endocarditis TEE video
- Added: Lung point and “D-sign” POCUS videos 4.8 01/08/2023 - Added: Calculators for regurgitant lesions (Valves → Native Valves → click top right calculator icon)
- Added: Ebstein’s anomaly POCUS video
- Added: Subclavian vein/artery vascular video
- Added: Mitral valve leaflet perforation and primum ASD TEE videos 4.7 11/21/2022 ⁃ Added: Medtronic Avalus aortic valve
⁃ Added: RVAD MCS TEE video
⁃ Added: Pecto-Intercostal Fascial Block (PIFB) video
⁃ Updated: Combined Links and Sources 4.6 10/24/2022 ⁃ Added: Autosomal dominant polycystic kidney disease (ADPKD) POCUS video
⁃ Updated: Fixed AVPlayerViewController controls on videos
⁃ Updated: Standardized auto-layout constraints
⁃ Updated: Updated deprecated code for the in-app Review system 4.5 10/10/2022 ⁃ Added: Prosthesis Evaluation section for Prosthetic Valves
⁃ Added: Matomo SDK Integration (removed Firebase)
⁃ Updated: Higher resolution icons with lossless compression
⁃ Updated: Popups for references
⁃ Updated: Transitioned from CocoaPods to Swift Package Manager 4.4 09/27/2022 ⁃ Added: Pop-up framework containing references for prosthetic valve sections
⁃ Updated: Aortic, mitral, and tricuspid bioprosthetic valve information 4.3 06/30/2022 - Added: Ross procedure and intracardiac clot TEE videos
- Added: Right heart catheterization (RHC) video
- Added: Adductor canal peripheral nerve block video
- Updated: Coronary angiography section
- Updated: Standardized video sizes
- Updated: UIButton to UIImageView elements under the Anatomy tab 4.2 06/06/2022 ⁃ Added: Coronary angiogram section (still under construction)
⁃ Added: Midesophageal left atrial appendage (LAA) and 5 chamber view videos
⁃ Updated: Changed autoresizing masks throughout the application to improve compatibility with smaller iPhones screen sizes 4.1 04/26/2022 ⁃ Added: Midesophageal ascending aorta (long/short axis), upper esophageal aortic arch (long/short axis), transgastric right ventricular inflow, and a few transgastric tricuspid TEE videos
⁃ Updated: Table icons for References tab 4.0 03/22/2022 Added: Midesophageal 2 chamber TEE video
Added: Aortic intramural hematoma, fungal endocarditis, subaortic membrane, and paravalvular leak videos
Updated: Combined “References” and “About” tabbed menu bar content to clean up the interface
Updated: Prosthetic valve image transparency 3.9 02/23/2022 Added: Gallbladder and spleen (left upper quadrant) abdominal POCUS videos
Added: New video framework to allow videos to be expanded and viewed in landscape orientation
Added: Thumbnail icons to menus
Added: Option to click on valve images to expand
Updated: User interface elements 3.8 01/11/2022 Added: Ocular POCUS exam
Updated: About section to utilize picker view UI element
Updated: Beginning Equations section under References 3.7 12/12/2021
About EchoRef
The company that develops EchoRef is Rishi Kumar. The latest version released by its developer is 6.1.
To install EchoRef on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-14 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the EchoRef as malware if the download link is broken.
How to install EchoRef on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the EchoRef is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After EchoRef is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 6.1
posted on 2026-10-14
Version History Added: LA Volume by Biplane Area-Length, LV Volume/EF by Biplane Area-Length, Regurgitant Volume/Fraction by Volumetric Doppler, Aortic Size Index, LV Global Longitudinal Strain, RV Free-Wall Strain / 3D RVEF, Pseudo-MAD video
Added: Measurement Guides to the calculators
Updated: Implemented related-link improvements across the app
Updated: Improved performance and search algorithm 6.1 Aug 10 Updated: Completely refined the interface to better align with my other RKRef reference applications
Updated: Improved search with synonyms and category pages, added related content suggestions, enhanced notes and favorites, improved calculator copy buttons and list sorting, expanded the global toolbar, improved analytics and analytics controls, resized iPad anatomy and valve images, centralized links and note storage 6.0 Jul 9 Added: Global search function (magnifying glass in top right)
Added: LV thrombus POCUS case
Added: On-X mitral valve with stuck leaflet and mitral PVL plug 3D TEE videos
Added: Calculators for aortic pulsatility index (API) and Wilkins Score
Updated: Small user interface tweaks, codebase optimizations 5.9 May 19 Added: Calculators for Aortic Valve Area (Continuity), Stroke Volume & CO (LVOT), E/e′ Ratio, RVSP Estimate, Bernoulli Gradient, A–a Gradient
Updated: Calculator descriptions
Updated: Restructured cardiac equations section
Updated: Ultrasound physics and hemodynamic equations
Updated: User interface fixes throughout the app
Updated: Matomo SDK to 7.8.0 5.8 12/22/2025 Added: Hemodynamic and ultrasound equations
Added: Highlighting text when searching
Added: Slide to favorite or unfavorite calculations
Added: iPad interface
Update: Reduced boilerplate code
Update: Fixed native mitral stenosis values
Update: Restructured changelog scheme
Update: More subtle liquid glass for references 5.7 11/10/2025 Updated: Complete re-write of the codebase to transition from Storyboard to SwiftUI
Updated: Conform elements to iOS 26's liquid glass user interface 5.6 09/15/2025 ⁃ Added: Paravertebral nerve block video
⁃ Updated: Lossless compression of all media elements
⁃ Updated: Rewrote codebase to utilize single structured tuple-based arrays, eliminate unnecessary UI updates, streamline switch statements, etc.
- Overall, EchoTools' compressed binary size decreased from 208.8 MB (version 5.4) to 84 MB (version 5.5). 5.5 03/10/2025 ⁃ Added: Dilated coronary sinus (PLSVC) TEE video
⁃ Updated: Matomo framework, consistency across strings 5.4 06/08/2024 ⁃ Added: Navitor and Evolut-R TAVR valves
⁃ Added: Pulmonary velocity acceleration time (PVAT)
⁃ Added: Concentric LVH, aortic dissection flap fenestration, and quadricuspid aortic valve TEE videos
⁃ Updated: TAVR valve information 5.3 02/18/2024 ⁃ Added: Air bronchograms, cardiac standstill, and transhepatic IVC POCUS videos
⁃ Added: Septal myectomy and P2 restriction (type III) TEE videos
⁃ Updated: 3D TEE tricuspid valve video, 3-point compression ultrasound for lower extremity DVT video 5.2 12/31/2023 ⁃ Added: Proximal lower extremity DVT compression, left pleural effusion, and Tetralogy of Fallot POCUS videos
⁃ Added: Perceval sutureless aortic valve
⁃ Added: Edwards Mitris bioprosthetic mitral valve
⁃ Added: SVC collapsibility index 5.1 10/12/2023 - Added: 3D TEE mitral annular calcification (MAC), serratus plane block, spinal cord TEE, and type B dissection POCUS videos
⁃ Added: IVC distensibility index (DI)
⁃ Updated: IMH TEE video, D-Sign POCUS video, IVC POCUS video 5.0 06/06/2023 ⁃ Added: Femoral vascular, gastric, apical long-axis, apical two-chamber, apical five-chamber, and suprasternal aortic arch POCUS videos
⁃ Updated: POCUS subcostal TTE video 4.9 03/03/2023 - Added: LV diastology image for IVRT
- Added: Libman-Sacks endocarditis TEE video
- Added: Lung point and “D-sign” POCUS videos 4.8 01/08/2023 - Added: Calculators for regurgitant lesions (Valves → Native Valves → click top right calculator icon)
- Added: Ebstein’s anomaly POCUS video
- Added: Subclavian vein/artery vascular video
- Added: Mitral valve leaflet perforation and primum ASD TEE videos 4.7 11/21/2022 ⁃ Added: Medtronic Avalus aortic valve
⁃ Added: RVAD MCS TEE video
⁃ Added: Pecto-Intercostal Fascial Block (PIFB) video
⁃ Updated: Combined Links and Sources 4.6 10/24/2022 ⁃ Added: Autosomal dominant polycystic kidney disease (ADPKD) POCUS video
⁃ Updated: Fixed AVPlayerViewController controls on videos
⁃ Updated: Standardized auto-layout constraints
⁃ Updated: Updated deprecated code for the in-app Review system 4.5 10/10/2022 ⁃ Added: Prosthesis Evaluation section for Prosthetic Valves
⁃ Added: Matomo SDK Integration (removed Firebase)
⁃ Updated: Higher resolution icons with lossless compression
⁃ Updated: Popups for references
⁃ Updated: Transitioned from CocoaPods to Swift Package Manager 4.4 09/27/2022 ⁃ Added: Pop-up framework containing references for prosthetic valve sections
⁃ Updated: Aortic, mitral, and tricuspid bioprosthetic valve information 4.3 06/30/2022 - Added: Ross procedure and intracardiac clot TEE videos
- Added: Right heart catheterization (RHC) video
- Added: Adductor canal peripheral nerve block video
- Updated: Coronary angiography section
- Updated: Standardized video sizes
- Updated: UIButton to UIImageView elements under the Anatomy tab 4.2 06/06/2022 ⁃ Added: Coronary angiogram section (still under construction)
⁃ Added: Midesophageal left atrial appendage (LAA) and 5 chamber view videos
⁃ Updated: Changed autoresizing masks throughout the application to improve compatibility with smaller iPhones screen sizes 4.1 04/26/2022 ⁃ Added: Midesophageal ascending aorta (long/short axis), upper esophageal aortic arch (long/short axis), transgastric right ventricular inflow, and a few transgastric tricuspid TEE videos
⁃ Updated: Table icons for References tab 4.0 03/22/2022 Added: Midesophageal 2 chamber TEE video
Added: Aortic intramural hematoma, fungal endocarditis, subaortic membrane, and paravalvular leak videos
Updated: Combined “References” and “About” tabbed menu bar content to clean up the interface
Updated: Prosthetic valve image transparency 3.9 02/23/2022 Added: Gallbladder and spleen (left upper quadrant) abdominal POCUS videos
Added: New video framework to allow videos to be expanded and viewed in landscape orientation
Added: Thumbnail icons to menus
Added: Option to click on valve images to expand
Updated: User interface elements 3.8 01/11/2022 Added: Ocular POCUS exam
Updated: About section to utilize picker view UI element
Updated: Beginning Equations section under References 3.7 12/12/2021
version 6.0
posted on 2026-08-04
Version History Updated: Completely refined the interface to better align with my other RKRef reference applications
Updated: Improved search with synonyms and category pages, added related content suggestions, enhanced notes and favorites, improved calculator copy buttons and list sorting, expanded the global toolbar, improved analytics and analytics controls, resized iPad anatomy and valve images, centralized links and note storage 6.0 Jul 9 Added: Global search function (magnifying glass in top right)
Added: LV thrombus POCUS case
Added: On-X mitral valve with stuck leaflet and mitral PVL plug 3D TEE videos
Added: Calculators for aortic pulsatility index (API) and Wilkins Score
Updated: Small user interface tweaks, codebase optimizations 5.9 May 19 Added: Calculators for Aortic Valve Area (Continuity), Stroke Volume & CO (LVOT), E/e′ Ratio, RVSP Estimate, Bernoulli Gradient, A–a Gradient
Updated: Calculator descriptions
Updated: Restructured cardiac equations section
Updated: Ultrasound physics and hemodynamic equations
Updated: User interface fixes throughout the app
Updated: Matomo SDK to 7.8.0 5.8 12/22/2025 Added: Hemodynamic and ultrasound equations
Added: Highlighting text when searching
Added: Slide to favorite or unfavorite calculations
Added: iPad interface
Update: Reduced boilerplate code
Update: Fixed native mitral stenosis values
Update: Restructured changelog scheme
Update: More subtle liquid glass for references 5.7 11/10/2025 Updated: Complete re-write of the codebase to transition from Storyboard to SwiftUI
Updated: Conform elements to iOS 26's liquid glass user interface 5.6 09/15/2025 ⁃ Added: Paravertebral nerve block video
⁃ Updated: Lossless compression of all media elements
⁃ Updated: Rewrote codebase to utilize single structured tuple-based arrays, eliminate unnecessary UI updates, streamline switch statements, etc.
- Overall, EchoTools' compressed binary size decreased from 208.8 MB (version 5.4) to 84 MB (version 5.5). 5.5 03/10/2025 ⁃ Added: Dilated coronary sinus (PLSVC) TEE video
⁃ Updated: Matomo framework, consistency across strings 5.4 06/08/2024 ⁃ Added: Navitor and Evolut-R TAVR valves
⁃ Added: Pulmonary velocity acceleration time (PVAT)
⁃ Added: Concentric LVH, aortic dissection flap fenestration, and quadricuspid aortic valve TEE videos
⁃ Updated: TAVR valve information 5.3 02/18/2024 ⁃ Added: Air bronchograms, cardiac standstill, and transhepatic IVC POCUS videos
⁃ Added: Septal myectomy and P2 restriction (type III) TEE videos
⁃ Updated: 3D TEE tricuspid valve video, 3-point compression ultrasound for lower extremity DVT video 5.2 12/31/2023 ⁃ Added: Proximal lower extremity DVT compression, left pleural effusion, and Tetralogy of Fallot POCUS videos
⁃ Added: Perceval sutureless aortic valve
⁃ Added: Edwards Mitris bioprosthetic mitral valve
⁃ Added: SVC collapsibility index 5.1 10/12/2023 - Added: 3D TEE mitral annular calcification (MAC), serratus plane block, spinal cord TEE, and type B dissection POCUS videos
⁃ Added: IVC distensibility index (DI)
⁃ Updated: IMH TEE video, D-Sign POCUS video, IVC POCUS video 5.0 06/06/2023 ⁃ Added: Femoral vascular, gastric, apical long-axis, apical two-chamber, apical five-chamber, and suprasternal aortic arch POCUS videos
⁃ Updated: POCUS subcostal TTE video 4.9 03/03/2023 - Added: LV diastology image for IVRT
- Added: Libman-Sacks endocarditis TEE video
- Added: Lung point and “D-sign” POCUS videos 4.8 01/08/2023 - Added: Calculators for regurgitant lesions (Valves → Native Valves → click top right calculator icon)
- Added: Ebstein’s anomaly POCUS video
- Added: Subclavian vein/artery vascular video
- Added: Mitral valve leaflet perforation and primum ASD TEE videos 4.7 11/21/2022 ⁃ Added: Medtronic Avalus aortic valve
⁃ Added: RVAD MCS TEE video
⁃ Added: Pecto-Intercostal Fascial Block (PIFB) video
⁃ Updated: Combined Links and Sources 4.6 10/24/2022 ⁃ Added: Autosomal dominant polycystic kidney disease (ADPKD) POCUS video
⁃ Updated: Fixed AVPlayerViewController controls on videos
⁃ Updated: Standardized auto-layout constraints
⁃ Updated: Updated deprecated code for the in-app Review system 4.5 10/10/2022 ⁃ Added: Prosthesis Evaluation section for Prosthetic Valves
⁃ Added: Matomo SDK Integration (removed Firebase)
⁃ Updated: Higher resolution icons with lossless compression
⁃ Updated: Popups for references
⁃ Updated: Transitioned from CocoaPods to Swift Package Manager 4.4 09/27/2022 ⁃ Added: Pop-up framework containing references for prosthetic valve sections
⁃ Updated: Aortic, mitral, and tricuspid bioprosthetic valve information 4.3 06/30/2022 - Added: Ross procedure and intracardiac clot TEE videos
- Added: Right heart catheterization (RHC) video
- Added: Adductor canal peripheral nerve block video
- Updated: Coronary angiography section
- Updated: Standardized video sizes
- Updated: UIButton to UIImageView elements under the Anatomy tab 4.2 06/06/2022 ⁃ Added: Coronary angiogram section (still under construction)
⁃ Added: Midesophageal left atrial appendage (LAA) and 5 chamber view videos
⁃ Updated: Changed autoresizing masks throughout the application to improve compatibility with smaller iPhones screen sizes 4.1 04/26/2022 ⁃ Added: Midesophageal ascending aorta (long/short axis), upper esophageal aortic arch (long/short axis), transgastric right ventricular inflow, and a few transgastric tricuspid TEE videos
⁃ Updated: Table icons for References tab 4.0 03/22/2022 Added: Midesophageal 2 chamber TEE video
Added: Aortic intramural hematoma, fungal endocarditis, subaortic membrane, and paravalvular leak videos
Updated: Combined “References” and “About” tabbed menu bar content to clean up the interface
Updated: Prosthetic valve image transparency 3.9 02/23/2022 Added: Gallbladder and spleen (left upper quadrant) abdominal POCUS videos
Added: New video framework to allow videos to be expanded and viewed in landscape orientation
Added: Thumbnail icons to menus
Added: Option to click on valve images to expand
Updated: User interface elements 3.8 01/11/2022 Added: Ocular POCUS exam
Updated: About section to utilize picker view UI element
Updated: Beginning Equations section under References 3.7 12/12/2021 - Added: Carcinoid tricuspid valve, diaphragm M-mode POCUS, and abnormal bubble study videos
- Updated: TAPSE and tricuspid regurgitation images 3.6 10/06/2021
version 5.9
posted on 2026-07-01
Version History Added: Global search function (magnifying glass in top right)
Added: LV thrombus POCUS case
Added: On-X mitral valve with stuck leaflet and mitral PVL plug 3D TEE videos
Added: Calculators for aortic pulsatility index (API) and Wilkins Score
Updated: Small user interface tweaks, codebase optimizations 5.9 May 19 Added: Calculators for Aortic Valve Area (Continuity), Stroke Volume & CO (LVOT), E/e′ Ratio, RVSP Estimate, Bernoulli Gradient, A–a Gradient
Updated: Calculator descriptions
Updated: Restructured cardiac equations section
Updated: Ultrasound physics and hemodynamic equations
Updated: User interface fixes throughout the app
Updated: Matomo SDK to 7.8.0 5.8 12/22/2025 Added: Hemodynamic and ultrasound equations
Added: Highlighting text when searching
Added: Slide to favorite or unfavorite calculations
Added: iPad interface
Update: Reduced boilerplate code
Update: Fixed native mitral stenosis values
Update: Restructured changelog scheme
Update: More subtle liquid glass for references 5.7 11/10/2025 Updated: Complete re-write of the codebase to transition from Storyboard to SwiftUI
Updated: Conform elements to iOS 26's liquid glass user interface 5.6 09/15/2025 ⁃ Added: Paravertebral nerve block video
⁃ Updated: Lossless compression of all media elements
⁃ Updated: Rewrote codebase to utilize single structured tuple-based arrays, eliminate unnecessary UI updates, streamline switch statements, etc.
- Overall, EchoTools' compressed binary size decreased from 208.8 MB (version 5.4) to 84 MB (version 5.5). 5.5 03/10/2025 ⁃ Added: Dilated coronary sinus (PLSVC) TEE video
⁃ Updated: Matomo framework, consistency across strings 5.4 06/08/2024 ⁃ Added: Navitor and Evolut-R TAVR valves
⁃ Added: Pulmonary velocity acceleration time (PVAT)
⁃ Added: Concentric LVH, aortic dissection flap fenestration, and quadricuspid aortic valve TEE videos
⁃ Updated: TAVR valve information 5.3 02/18/2024 ⁃ Added: Air bronchograms, cardiac standstill, and transhepatic IVC POCUS videos
⁃ Added: Septal myectomy and P2 restriction (type III) TEE videos
⁃ Updated: 3D TEE tricuspid valve video, 3-point compression ultrasound for lower extremity DVT video 5.2 12/31/2023 ⁃ Added: Proximal lower extremity DVT compression, left pleural effusion, and Tetralogy of Fallot POCUS videos
⁃ Added: Perceval sutureless aortic valve
⁃ Added: Edwards Mitris bioprosthetic mitral valve
⁃ Added: SVC collapsibility index 5.1 10/12/2023 - Added: 3D TEE mitral annular calcification (MAC), serratus plane block, spinal cord TEE, and type B dissection POCUS videos
⁃ Added: IVC distensibility index (DI)
⁃ Updated: IMH TEE video, D-Sign POCUS video, IVC POCUS video 5.0 06/06/2023 ⁃ Added: Femoral vascular, gastric, apical long-axis, apical two-chamber, apical five-chamber, and suprasternal aortic arch POCUS videos
⁃ Updated: POCUS subcostal TTE video 4.9 03/03/2023 - Added: LV diastology image for IVRT
- Added: Libman-Sacks endocarditis TEE video
- Added: Lung point and “D-sign” POCUS videos 4.8 01/08/2023 - Added: Calculators for regurgitant lesions (Valves → Native Valves → click top right calculator icon)
- Added: Ebstein’s anomaly POCUS video
- Added: Subclavian vein/artery vascular video
- Added: Mitral valve leaflet perforation and primum ASD TEE videos 4.7 11/21/2022 ⁃ Added: Medtronic Avalus aortic valve
⁃ Added: RVAD MCS TEE video
⁃ Added: Pecto-Intercostal Fascial Block (PIFB) video
⁃ Updated: Combined Links and Sources 4.6 10/24/2022 ⁃ Added: Autosomal dominant polycystic kidney disease (ADPKD) POCUS video
⁃ Updated: Fixed AVPlayerViewController controls on videos
⁃ Updated: Standardized auto-layout constraints
⁃ Updated: Updated deprecated code for the in-app Review system 4.5 10/10/2022 ⁃ Added: Prosthesis Evaluation section for Prosthetic Valves
⁃ Added: Matomo SDK Integration (removed Firebase)
⁃ Updated: Higher resolution icons with lossless compression
⁃ Updated: Popups for references
⁃ Updated: Transitioned from CocoaPods to Swift Package Manager 4.4 09/27/2022 ⁃ Added: Pop-up framework containing references for prosthetic valve sections
⁃ Updated: Aortic, mitral, and tricuspid bioprosthetic valve information 4.3 06/30/2022 - Added: Ross procedure and intracardiac clot TEE videos
- Added: Right heart catheterization (RHC) video
- Added: Adductor canal peripheral nerve block video
- Updated: Coronary angiography section
- Updated: Standardized video sizes
- Updated: UIButton to UIImageView elements under the Anatomy tab 4.2 06/06/2022 ⁃ Added: Coronary angiogram section (still under construction)
⁃ Added: Midesophageal left atrial appendage (LAA) and 5 chamber view videos
⁃ Updated: Changed autoresizing masks throughout the application to improve compatibility with smaller iPhones screen sizes 4.1 04/26/2022 ⁃ Added: Midesophageal ascending aorta (long/short axis), upper esophageal aortic arch (long/short axis), transgastric right ventricular inflow, and a few transgastric tricuspid TEE videos
⁃ Updated: Table icons for References tab 4.0 03/22/2022 Added: Midesophageal 2 chamber TEE video
Added: Aortic intramural hematoma, fungal endocarditis, subaortic membrane, and paravalvular leak videos
Updated: Combined “References” and “About” tabbed menu bar content to clean up the interface
Updated: Prosthetic valve image transparency 3.9 02/23/2022 Added: Gallbladder and spleen (left upper quadrant) abdominal POCUS videos
Added: New video framework to allow videos to be expanded and viewed in landscape orientation
Added: Thumbnail icons to menus
Added: Option to click on valve images to expand
Updated: User interface elements 3.8 01/11/2022 Added: Ocular POCUS exam
Updated: About section to utilize picker view UI element
Updated: Beginning Equations section under References 3.7 12/12/2021 - Added: Carcinoid tricuspid valve, diaphragm M-mode POCUS, and abnormal bubble study videos
- Updated: TAPSE and tricuspid regurgitation images 3.6 10/06/2021 - Added: References section (with sections for equations and links, both still under development)
- Added: Separate sections for “About” - Author, Changelog, Contribute, Disclaimer & Terms, and References
- Added: Images for PI jet and RA minor axis
- Updated: Tab bar and social media icons 3.5 09/08/2021
version 5.8
posted on 2026-05-08
Version History Added: Calculators for Aortic Valve Area (Continuity), Stroke Volume & CO (LVOT), E/e′ Ratio, RVSP Estimate, Bernoulli Gradient, A–a Gradient
Updated: Calculator descriptions
Updated: Restructured cardiac equations section
Updated: Ultrasound physics and hemodynamic equations
Updated: User interface fixes throughout the app
Updated: Matomo SDK to 7.8.0 5.8 12/22/2025 Added: Hemodynamic and ultrasound equations
Added: Highlighting text when searching
Added: Slide to favorite or unfavorite calculations
Added: iPad interface
Update: Reduced boilerplate code
Update: Fixed native mitral stenosis values
Update: Restructured changelog scheme
Update: More subtle liquid glass for references 5.7 11/10/2025 Updated: Complete re-write of the codebase to transition from Storyboard to SwiftUI
Updated: Conform elements to iOS 26's liquid glass user interface 5.6 09/15/2025 ⁃ Added: Paravertebral nerve block video
⁃ Updated: Lossless compression of all media elements
⁃ Updated: Rewrote codebase to utilize single structured tuple-based arrays, eliminate unnecessary UI updates, streamline switch statements, etc.
- Overall, EchoTools' compressed binary size decreased from 208.8 MB (version 5.4) to 84 MB (version 5.5). 5.5 03/10/2025 ⁃ Added: Dilated coronary sinus (PLSVC) TEE video
⁃ Updated: Matomo framework, consistency across strings 5.4 06/08/2024 ⁃ Added: Navitor and Evolut-R TAVR valves
⁃ Added: Pulmonary velocity acceleration time (PVAT)
⁃ Added: Concentric LVH, aortic dissection flap fenestration, and quadricuspid aortic valve TEE videos
⁃ Updated: TAVR valve information 5.3 02/18/2024 ⁃ Added: Air bronchograms, cardiac standstill, and transhepatic IVC POCUS videos
⁃ Added: Septal myectomy and P2 restriction (type III) TEE videos
⁃ Updated: 3D TEE tricuspid valve video, 3-point compression ultrasound for lower extremity DVT video 5.2 12/31/2023 ⁃ Added: Proximal lower extremity DVT compression, left pleural effusion, and Tetralogy of Fallot POCUS videos
⁃ Added: Perceval sutureless aortic valve
⁃ Added: Edwards Mitris bioprosthetic mitral valve
⁃ Added: SVC collapsibility index 5.1 10/12/2023 - Added: 3D TEE mitral annular calcification (MAC), serratus plane block, spinal cord TEE, and type B dissection POCUS videos
⁃ Added: IVC distensibility index (DI)
⁃ Updated: IMH TEE video, D-Sign POCUS video, IVC POCUS video 5.0 06/06/2023 ⁃ Added: Femoral vascular, gastric, apical long-axis, apical two-chamber, apical five-chamber, and suprasternal aortic arch POCUS videos
⁃ Updated: POCUS subcostal TTE video 4.9 03/03/2023 - Added: LV diastology image for IVRT
- Added: Libman-Sacks endocarditis TEE video
- Added: Lung point and “D-sign” POCUS videos 4.8 01/08/2023 - Added: Calculators for regurgitant lesions (Valves → Native Valves → click top right calculator icon)
- Added: Ebstein’s anomaly POCUS video
- Added: Subclavian vein/artery vascular video
- Added: Mitral valve leaflet perforation and primum ASD TEE videos 4.7 11/21/2022 ⁃ Added: Medtronic Avalus aortic valve
⁃ Added: RVAD MCS TEE video
⁃ Added: Pecto-Intercostal Fascial Block (PIFB) video
⁃ Updated: Combined Links and Sources 4.6 10/24/2022 ⁃ Added: Autosomal dominant polycystic kidney disease (ADPKD) POCUS video
⁃ Updated: Fixed AVPlayerViewController controls on videos
⁃ Updated: Standardized auto-layout constraints
⁃ Updated: Updated deprecated code for the in-app Review system 4.5 10/10/2022 ⁃ Added: Prosthesis Evaluation section for Prosthetic Valves
⁃ Added: Matomo SDK Integration (removed Firebase)
⁃ Updated: Higher resolution icons with lossless compression
⁃ Updated: Popups for references
⁃ Updated: Transitioned from CocoaPods to Swift Package Manager 4.4 09/27/2022 ⁃ Added: Pop-up framework containing references for prosthetic valve sections
⁃ Updated: Aortic, mitral, and tricuspid bioprosthetic valve information 4.3 06/30/2022 - Added: Ross procedure and intracardiac clot TEE videos
- Added: Right heart catheterization (RHC) video
- Added: Adductor canal peripheral nerve block video
- Updated: Coronary angiography section
- Updated: Standardized video sizes
- Updated: UIButton to UIImageView elements under the Anatomy tab 4.2 06/06/2022 ⁃ Added: Coronary angiogram section (still under construction)
⁃ Added: Midesophageal left atrial appendage (LAA) and 5 chamber view videos
⁃ Updated: Changed autoresizing masks throughout the application to improve compatibility with smaller iPhones screen sizes 4.1 04/26/2022 ⁃ Added: Midesophageal ascending aorta (long/short axis), upper esophageal aortic arch (long/short axis), transgastric right ventricular inflow, and a few transgastric tricuspid TEE videos
⁃ Updated: Table icons for References tab 4.0 03/22/2022 Added: Midesophageal 2 chamber TEE video
Added: Aortic intramural hematoma, fungal endocarditis, subaortic membrane, and paravalvular leak videos
Updated: Combined “References” and “About” tabbed menu bar content to clean up the interface
Updated: Prosthetic valve image transparency 3.9 02/23/2022 Added: Gallbladder and spleen (left upper quadrant) abdominal POCUS videos
Added: New video framework to allow videos to be expanded and viewed in landscape orientation
Added: Thumbnail icons to menus
Added: Option to click on valve images to expand
Updated: User interface elements 3.8 01/11/2022 Added: Ocular POCUS exam
Updated: About section to utilize picker view UI element
Updated: Beginning Equations section under References 3.7 12/12/2021 - Added: Carcinoid tricuspid valve, diaphragm M-mode POCUS, and abnormal bubble study videos
- Updated: TAPSE and tricuspid regurgitation images 3.6 10/06/2021 - Added: References section (with sections for equations and links, both still under development)
- Added: Separate sections for “About” - Author, Changelog, Contribute, Disclaimer & Terms, and References
- Added: Images for PI jet and RA minor axis
- Updated: Tab bar and social media icons 3.5 09/08/2021 - Added: Initial dark mode framework
- Added: IJ clot and color 3D GlassVue aortic valve videos 3.4 07/24/2021
version 5.8
posted on 2025-12-22
Added: Calculators for Aortic Valve Area (Continuity), Stroke Volume & CO (LVOT), E/e′ Ratio, RVSP Estimate, Bernoulli Gradient, A–a Gradient
Updated: Calculator descriptions
Updated: Restructured cardiac equations section
Updated: Ultrasound physics and hemodynamic equations
Updated: User interface fixes throughout the app
Updated: Matomo SDK to 7.8.0
version 5.6
posted on 2025-09-15
Sep 15, 2025
Version 5.6
Updated: Complete re-write of the codebase to transition from Storyboard to SwiftUI
Updated: Conform elements to iOS 26's liquid glass user interface
version 5.5
posted on 2025-03-10
Mar 10, 2025
Version 5.5
⁃ Added: Paravertebral nerve block video
⁃ Updated: Lossless compression of all media elements
⁃ Updated: Rewrote codebase to utilize single structured tuple-based arrays, eliminate unnecessary UI updates, streamline switch statements, etc.
- Overall, EchoTools' compressed binary size decreased from 208.8 MB (version 5.4) to 84 MB (version 5.5).
version 5.4
posted on 2024-06-08
Jun 8, 2024
Version 5.4
⁃ Added: Dilated coronary sinus (PLSVC) TEE video
⁃ Updated: Matomo framework, consistency across strings
version 5.3
posted on 2024-02-18
Feb 18, 2024
Version 5.3
⁃ Added: Navitor and Evolut-R TAVR valves
⁃ Added: Pulmonary velocity acceleration time (PVAT)
⁃ Added: Concentric LVH, aortic dissection flap fenestration, and quadricuspid aortic valve TEE videos
⁃ Updated: TAVR valve information
version 5.2
posted on 2023-12-31
Dec 31, 2023
Version 5.2
⁃ Added: Air bronchograms, cardiac standstill, and transhepatic IVC POCUS videos
⁃ Added: Septal myectomy and P2 restriction (type III) TEE videos
⁃ Updated: 3D TEE tricuspid valve video, 3-point compression ultrasound for lower extremity DVT video
Disclaimer
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