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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Echocardiography and point-of-care ultrasound organized for the bedside. EchoRef is a comprehensive echocardiography and ultrasound reference for physicians, nurses, advanced practice clinicians, sonographers, medical students, and other healthcare learners. Review TEE, TTE, and POCUS videos, check cardiac measurements and diagnostic criteria, evaluate native and prosthetic valves, and perform commonly used ultrasound and hemodynamic calculations, all in one focused reference. FEATURES • Educational video library covering 2D and 3D TEE, interventional echocardiography, mechanical circulatory support, and clinical cases • POCUS instruction for cardiac, lung, abdominal, vascular, and peripheral nerve block examinations • Cardiac anatomy measurements and reference values for chamber size, ventricular function, diastology, and vascular structures • Native valve assessment for aortic, mitral, tricuspid, and pulmonic stenosis and regurgitation • Prosthetic valve reference for surgical valves, TAVR, and prosthesis evaluation • Ultrasound and hemodynamic calculators for valve area, cardiac output, ventricular function, filling pressures, vascular resistance, shunts, fluid responsiveness, and more • Cardiac equations, hemodynamic reference values, and ultrasound physics • Clinical protocols, focused examination guidance, findings atlas, and reporting documentation • Acquisition guidance, measurement tips, common pitfalls, and related clinical content • Global search, favorites, related links, and personal notes EchoRef connects ultrasound physics, image acquisition, echocardiographic interpretation, and bedside decision-making. Whether you are learning standard views, reviewing an unfamiliar finding, evaluating valve disease, or checking a calculation, the app makes relevant information easy to find. Created by Rishi Kumar, MD, FACC (“RK.MD”), an academic adult cardiothoracic anesthesiologist and cardiovascular ICU intensivist committed to free, open-access medical education. Learn more at https://rk.md EchoRef is intended for educational and informational purposes only. It does not provide medical advice and is not a substitute for professional judgment, diagnosis, or treatment. Clinical findings and calculations must be independently verified and interpreted in the context of the individual patient. Seek guidance from a qualified healthcare professional regarding any medical condition. Do not disregard or delay professional medical advice because of information provided by this app.
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 November 2, 2026 and November 3, 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 | 104 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








