Comparison

ECHO On vs Valve PPM

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

Valve PPM

This tool assists medical professionals in assessing implanted prosthetic cardiac valves. It offers guidance for checking existing valve function and selecting the optimal valve before implantation based on patient and prosthesis parameters.

Highlights
  • Assess implanted valve function
  • Select optimal valve before implantation
  • Analyze patient and prosthesis parameters
  • Identify potential patient-prosthesis mismatch
  • Determine intrinsic prosthesis dysfunction
Features
Read full description

Valve PPM is an innovative mobile tool developed to support echocardiography professionals in their effort of assessing the functionality of implanted prosthetic cardiac valves. The application provides guidelines for assessing an already implanted valve (Check Valve Function) and for choosing a valve before implantation (Optimal Valve Selector). The algorithms behind the App have been derived after an extensive research of the published materials on the aortic and mitral prosthetic valve assessment. - Check Valve Function After selecting a particular valve type, the patient characteristics (weight/height) and the prosthesis actual parameters (peak velocity, mean gradient, VTI prosthesis, VTI LVOT and LVOTd), Valve PPM will provide the user with an answer regarding the normal function of the valve, the potential patient prosthesis mismatch or the intrinsic prosthesis dysfunction. - Optimal Valve Selector The user will be required to select a valve position (aortic/mitral) and the patient characteristics (weight/height) and Valve PPM will instantly indicate the minimum Effective Orifice Area (EOA) in order to avoid Patient Prosthesis Mismatch (PPM).

Screenshots

ECHO On4 screens
Valve PPM4 screens

Verdict

The call

The clearest difference is update cadence: ECHO On at weekly against Valve PPM's every 2 months. ECHO On also leads on ratings volume (14 vs 3). On price, rating, review sentiment and ads 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. Neither carries in-app purchases, so what you see is what you pay.

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 Valve PPM. Both are backed by a comparable volume of ratings — 14 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

ECHO On ships an update weekly, Valve PPM every 2 months. The most recent releases landed on October 13, 2026 and September 21, 2026 respectively.

Scorecard2 real differences · 8 level
ECHO On versus Valve PPM: the parameters behind the verdict, then further details
ParameterECHO OnValve PPM
PriceFreeFree
Rating4.9 (14 ratings)5.0 (3 ratings) — better
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings14 — better3
Update frequencyWeekly — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.1 — better
Further details — not scored
Size414 MB37 MB
Age rating12+12+
DeveloperRobert ArrigoKRUTSCH

Customer experience

ECHO On

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

Valve PPM

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

ECHO On

No in-app purchases

None

Valve PPM

No in-app purchases

Questions

Is ECHO On free?
ECHO On is free to download, with no in-app purchases.
Is Valve PPM free?
Valve PPM is free to download, with no in-app purchases.
Which has better reviews, ECHO On or Valve PPM?
Valve PPM is rated higher. ECHO On averages 4.9 out of 5 from 14 ratings, while Valve PPM averages 5.0 from 3 ratings.
Do ECHO On or Valve PPM have ads?
Neither ECHO On nor Valve PPM shows ads.
Which is updated more often, ECHO On or Valve PPM?
ECHO On ships an update weekly, and Valve PPM every 2 months. Most recently, ECHO On was updated on October 13, 2026 and Valve PPM on September 21, 2026.

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