ECHO On vs Periop Pacemaker
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.
Periop Pacemaker
This app provides medical professionals with a decision algorithm for managing surgical patients with implantable defibrillators or pacemakers. It is based on guidelines endorsed by the Heart Rhythm Society and updated annually by an expert committee.
- Decision algorithm for pacemaker/defibrillator management
- Endorsed by Heart Rhythm Society
- Based on ASA Perioperative Cardiac Implantable Electronic Device Management Aid
- Annual expert committee updates
- Designed for medical professionals
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Periop Pacemaker is a smartphone app that assists medical professionals who take care of surgical patients that have implantable defibrillators or pacemakers. The decision algorithm is endorsed by the Heart Rhythm Society and is based on the American Society of Anesthesiologists Perioperative Cardiac Implantable Electronic Device Management Aid. As device technology evolves, an expert committee of anesthesiologists, cardiologists, and device representatives will meet annually to keep information up-to-date. Disclaimer: ASA Pacemaker is designed for use by medical professionals only. Accessing the app content requires either a one-time payment of $7.99 USD or an annual subscription payment of $2.99 USD. A 30-day free trial is available under the annual subscription plan.
Screenshots
Verdict
The clearest difference is in-app purchases: ECHO On at none against Periop Pacemaker's 2. ECHO On also leads on update cadence (weekly vs every 2 months). Periop Pacemaker's advantage is iOS requirement (13.0 vs 15.6). On price, rating, review sentiment and ratings volume 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. Periop Pacemaker sells 2 in-app purchases, starting at $2.99 per year. ECHO On asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.9 for ECHO On against 5.0 for Periop Pacemaker. Both are backed by a comparable volume of ratings — 14 and 8 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
ECHO On ships an update weekly, Periop Pacemaker every 2 months. The most recent releases landed on October 13, 2026 and September 27, 2026 respectively.
| Parameter | ECHO On | Periop Pacemaker |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (14 ratings) | 5.0 (8 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 14 — better | 8 |
| Update frequency | Weekly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 13.0 — better |
| Further details — not scored | ||
| Size | 414 MB | 43 MB |
| Age rating | 12+ | 17+ |
| Developer | Robert Arrigo | Rhythm Management, LLC |
Customer experience
ECHO On
Periop Pacemaker
In-app purchases
ECHO On
No in-app purchases
Periop Pacemaker
- PERIOP PACEMAKER ANNUAL FEE1 Month trial$2.991 Year
- Periop Pacemaker$7.99









