TEE Colour Doppler vs EchoRef
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TEE Colour Doppler
This medical app visualizes cardiac blood flow using 2D and 3D color Doppler imaging. It aids in diagnosing and quantifying the severity of cardiac lesions by demonstrating normal flow patterns across heart structures.
- 2D and 3D echocardiography visualization
- Color Doppler imaging for blood flow assessment
- Rotatable 3D heart models
- Color compare video clips
- Demonstrates normal blood flow patterns
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Two and three-dimensional echocardiography forms the basis of assessing cardiac structure and function. The application of colour Doppler imaging is routinely performed over cardiac valves, vascular and other pathological structures to assess blood flow direction and velocity. This aids the confirmation of pathological diagnoses and quantifies the severity of these lesions. This module demonstrates which structures should be viewed using colour Doppler during the standard 2D examination. Each of the 20 standard views is accompanied by a rotatable three-dimensional heart model and a `colour compare’ video clip which simultaneously shows the two-dimensional and colour Doppler images of each view. Normal blood flow across or within various parts of the heart is shown.
EchoRef
This educational reference app provides comprehensive information on point-of-care ultrasound (POCUS), echocardiography, and cardiac measurements. It includes lessons on interventional procedures and hemodynamic calculations for medical professionals.
- Point-of-care ultrasound (POCUS)
- Transthoracic echocardiography (TTE)
- Transesophageal echocardiography (TEE)
- Cardiac dimensions and valve measurements
- Hemodynamic and ultrasound calculations
- Interventional procedure lessons
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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
Screenshots
Verdict
The clearest difference is price: EchoRef at Free against TEE Colour Doppler's $4.99. EchoRef also leads on rating (4.9 vs 3.0) and update cadence (every 2 months vs every 24 months). TEE Colour Doppler's advantage is iOS requirement (6.0 vs 26.0). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
EchoRef is free to download; TEE Colour Doppler costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
EchoRef holds the better App Store score, 4.9 against 3.0. That said, the two scores are not equally well evidenced: EchoRef has 1.4K ratings behind it against 2, so its average is the more settled of the two.
TEE Colour Doppler ships an update every 24 months, EchoRef every 2 months. The most recent releases landed on June 3, 2026 and September 28, 2026 respectively.
| Parameter | TEE Colour Doppler | EchoRef |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 3.0 (2 ratings) | 4.9 (1.4K ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 2 | 1.4K — better |
| Update frequency | Every 24 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPad | iPhone, iPad — better |
| Requires iOS | 6.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 65 MB | 105 MB |
| Age rating | 17+ | 17+ |
| Developer | University Health Network | Rishi Kumar |
Customer experience
TEE Colour Doppler
EchoRef
In-app purchases
TEE Colour Doppler
No in-app purchases
EchoRef
No in-app purchases
Questions
Is TEE Colour Doppler free?
Is EchoRef free?
Which has better reviews, TEE Colour Doppler or EchoRef?
Do TEE Colour Doppler or EchoRef have ads?
Which is updated more often, TEE Colour Doppler or EchoRef?
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