Comparison

ECHO On vs Periop Pacemaker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

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.

Highlights
  • 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
Features
Read full description

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

ECHO On4 screens
Periop Pacemaker4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
ECHO On versus Periop Pacemaker: the parameters behind the verdict, then further details
ParameterECHO OnPeriop Pacemaker
PriceFreeFree
Rating4.9 (14 ratings)5.0 (8 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings14 — better8
Update frequencyWeekly — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.613.0 — better
Further details — not scored
Size414 MB43 MB
Age rating12+17+
DeveloperRobert ArrigoRhythm Management, LLC

Customer experience

ECHO On

All ratings14 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Periop Pacemaker

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

ECHO On

No in-app purchases

2 purchases

Periop Pacemaker

Subscriptions1
  • PERIOP PACEMAKER ANNUAL FEE1 Month trial$2.991 Year
One-time1
  • Periop Pacemaker$7.99

Questions

Is ECHO On free?
ECHO On is free to download, with no in-app purchases.
Is Periop Pacemaker free?
Periop Pacemaker is free to download, with in-app purchases available.
Which has better reviews, ECHO On or Periop Pacemaker?
Periop Pacemaker is rated higher. ECHO On averages 4.9 out of 5 from 14 ratings, while Periop Pacemaker averages 5.0 from 8 ratings.
Do ECHO On or Periop Pacemaker have ads?
Neither ECHO On nor Periop Pacemaker shows ads.
Which is updated more often, ECHO On or Periop Pacemaker?
ECHO On ships an update weekly, and Periop Pacemaker every 2 months. Most recently, ECHO On was updated on October 13, 2026 and Periop Pacemaker on September 27, 2026.

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