Version history
EchoRef
44
ASO score
Text
38/100
Reviews
50/100
Graphic
60/100
Other
0/100
App Rating
4.8
Votes
3.01K
App Age
10y 1m
Last Update
Dec 22, 2025
Compare with Category Top Apps
|
Metrics
|
Current App
|
Category Top Average
|
Difference
|
|---|---|---|---|
|
Rating
|
4.78
|
4.6
|
+4%
|
|
Number of Ratings (Voted)
|
3K
|
65.7K
|
-95%
|
|
App Age
|
10y 0m
|
9y 3m
|
+9%
|
|
In-app Purchases Price
|
$0
|
$35
|
|
|
Update Frequency
|
70d
|
102d
|
-31%
|
|
Title Length
|
7
|
25
|
-72%
|
|
Subtitle Length
|
25
|
27
|
-7%
|
|
Description Length
|
1 029
|
2 720
|
-62%
|
|
Number of Screenshots
|
975
|
1400
|
-30
%
|
|
Size
|
98MB
|
280MB
|
-65
%
|
Category Ranking in United States
7 days
Last 7 days
Last 30 days
Last 90 days
Last 180 days
Last year
| Top | Dec 28, 2025 | Jan 04, 2026 |
|---|---|---|
|
No results were found!
|
||
| Top | Dec 28, 2025 | Jan 04, 2026 |
|---|---|---|
|
No results were found!
|
||
| Top | Dec 28, 2025 | Jan 04, 2026 |
|---|---|---|
|
No results were found!
|
||
| Top | Dec 28, 2025 | Jan 04, 2026 |
|---|---|---|
|
No results were found!
|
||
Ranking Keywords in United States
| Keywords | App Rank |
|---|
Analyze this and other apps using Asolytics tools
Text ASO
Title
(
Characters:
7
of 30
)
EchoRef
Subtitle
(
Characters:
25
of 30
)
Ultrasonography Reference
Description
(
Characters:
1029
of 4000
)
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}
Read more
Other
Additional Information
Version history
5.8
Dec 22, 2025
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
5.7
Nov 10, 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