ECHO On vs Echo Calculate
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ECHO On
This medical education app helps users learn Transesophageal Echocardiography with a question bank, cognitive aid, case log, and reference library. It provides guidance on performing and interpreting a standard 28-view exam, including anatomy, function, and Doppler interrogations.
- Transesophageal Echocardiography education
- Enlarging question bank
- Rescue TEE cognitive aid
- Case Log system
- Perioperative Quick Reference library
- Offline echo loops
- Pathology, technique, and normal loop examples
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ECHO On is a free medical education resource for learning Transesophageal Echocardiography including a free, enlarging question bank, a Rescue TEE cognitive aid, a Case Log system for submission to the NBE, and a growing perioperative Quick Reference library with offline echo loops that work even in the OR without internet access, and includes pathology examples, techniques, and normal loops of the heart. ECHO On will walk you through an entire standard 28 view exam teaching you the anatomy, function and Doppler interrogations you should perform at each view, and how to interpret them. ECHO On is and will remain free, and the best way you can contribute is to submit boards-style questions or echo stills and echo loops to help grow the QBank, Quick Reference and Pathology libraries. Disclaimer: This app was written to provide an accessible perioperative tool for residents and fellows learning TEE in the cardiac OR and ICU, and for generalist anesthesiologists looking to refresh their knowledge of TEE. It is not meant for patients to self-diagnose. It is not meant to be a definitive reference. Despite my best efforts, there may be errors or inaccuracies in this app, so please do not use it for medical decision making, as doing so may lead you misdiagnose or seriously harm your patient. If you are not a qualified medical doctor, please see a qualified medical doctor before making any medical decisions, including those based on echocardiograms.
Echo Calculate
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Echo Calculate is a clinical reference and calculation tool designed for echocardiography and cardiovascular assessment workflows. Quickly access structured calculators, reference ranges, patient measurement tracking, and trend-based follow-up tools in one place. KEY FEATURES Clinical Calculators Access organised calculation categories for: • Aortic, mitral, pulmonary and tricuspid valve assessment • Hemodynamics • Left ventricular function • Right ventricular function • Diastolic function • Body size calculations • Chamber size and indexing • Regurgitation assessment • Doppler utilities Patient Measurement Tracking Create local patient profiles and record dated cardiovascular measurements over time. Track values such as: • Aortic Valve Area (AVA) • Mitral Valve Area (MVA) • Pressure gradients • Body Surface Area (BSA) • Body Mass Index (BMI) • Doppler measurements • Chamber measurements • Additional echocardiographic parameters Follow-Up Overview Echo Calculate organises patient records into a clear follow-up overview, helping users review stored measurements and identify which records may require closer attention. Automatic Reports Generate structured summaries from saved measurements. Reports combine dated records, measurement values and trend information into an easy-to-read format. Clinical Reference Ranges Access organised cardiovascular reference ranges and supporting information directly inside the app. Fast Search Quickly find calculations and measurements using familiar abbreviations and terms such as AVA, EF, RVSP, PISA, E/e′ and more. Multi-Language Support Use the app in multiple supported languages through the built-in language selector. Designed for Practical Use Echo Calculate features a clean, structured interface designed for fast access during study, education and professional clinical workflows. IMPORTANT MEDICAL DISCLAIMER Echo Calculate is intended as a calculation, education and clinical reference support tool. It does not provide a medical diagnosis and does not replace professional clinical judgement, medical examination, official guidelines or advice from a qualified healthcare professional. All calculated results and generated reports must be independently reviewed and interpreted in the context of the complete clinical picture. For medical concerns or emergencies, contact a qualified healthcare professional or emergency service.
Screenshots
Verdict
The clearest difference is in-app purchases: ECHO On at none against Echo Calculate's 1. ECHO On also leads on update cadence (weekly vs every 6 months). On price, ads, device support and iOS requirement 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. Echo Calculate sells 1 one-off in-app purchase. ECHO On asks for nothing beyond the download.
ECHO On ships an update weekly, Echo Calculate every 6 months. The most recent releases landed on September 10, 2026 and September 16, 2026 respectively.
| Parameter | ECHO On | Echo Calculate |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (14 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 14 — better | — |
| Update frequency | Weekly — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 414 MB | 26 MB |
| Age rating | 12+ | 4+ |
| Developer | Robert Arrigo | Gundogan Emre |
In-app purchases
ECHO On
No in-app purchases
Echo Calculate
- Echo Calculate Premium$3.99
Questions
Is ECHO On free?
Is Echo Calculate free?
Do ECHO On or Echo Calculate have ads?
Which is updated more often, ECHO On or Echo Calculate?
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