EchoRef vs ABA Go
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
ABA Go
This app consolidates physician portal functions for anesthesiologists, offering exam registration, results viewing, and progress monitoring for board certification. It also provides access to continuing education and medical license management.
- Exam registration and results
- Certification progress monitoring
- MOCA Minute question answering
- Medical license management
- CME Explorer access
- Certificate status letter download
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The ABA Go app brings MOCA Minute® and the full functionality of the ABA physician’s portal together in one, easy-to-use place. ABA Go is part of the seamless technology that powers anesthesiologists’ journey from residency to retirement, and provides all users with a real-time snapshot of their board certification or continuing certification status. In the app, users can: • Register for exams and see their results • Monitor their continuing certification progress and requirements via the dashboard • Answer MOCA Minute questions • Manage their medical licenses and access state-specific requirements • Access lifelong learning opportunities via the new CME Explorer and personalized Knowledge Assessment Report • Download a certificate status letter
Screenshots
Verdict
The clearest difference is review sentiment: EchoRef at 100% against ABA Go's 13%. EchoRef also leads on rating (4.9 vs 2.2) and monetization model (free vs free with in-app purchases). On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
EchoRef holds the better App Store score, 4.9 against 2.2. That said, the two scores are not equally well evidenced: EchoRef has 1.4K ratings behind it against 60, so its average is the more settled of the two. Written reviews point the same way: 100% of EchoRef's written reviews are positive against 13% of ABA Go's.
EchoRef ships an update every 2 months, ABA Go monthly. The most recent releases landed on October 11, 2026 and October 13, 2026 respectively.
| Parameter | EchoRef | ABA Go |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (1.4K ratings) — better | 2.2 (60 ratings) |
| Positive reviews | 100.0% of reviews — better | 13.0% of reviews |
| Number of ratings | 1.4K — better | 60 |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 26.0 |
| Further details — not scored | ||
| Size | 105 MB | 40 MB |
| Age rating | 17+ | 17+ |
| Developer | Rishi Kumar | American Board of Anesthesiology |
Customer experience
EchoRef
ABA Go
In-app purchases
EchoRef
No in-app purchases
ABA Go
No in-app purchases








