EP Mobile vs TRI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EP Mobile
This medical app offers a comprehensive suite of tools for cardiac electrophysiologists and related healthcare professionals. It provides calculators, risk scores, diagnostic criteria, and drug references to aid in the diagnosis and management of cardiac arrhythmias. Features are regularly updated and referenced for accuracy.
- Cardiac arrhythmia diagnostic criteria
- Risk score calculators
- Drug and anticoagulant references
- Pacing maneuver tools
- Interval to rate conversion
- Referenced modules with article links
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EP Mobile provides tools for cardiac electrophysiologists, cardiologists, cardiology fellows, internists, emergency room physicians, medical students, nurses, technicians, and other health care workers who deal with cardiac arrhythmias. If you have suggestions, features you'd like to see, or complaints, please email us! EP Mobile -- The Swiss Army Knife of Electrophysiology! Features: - All modules fully referenced with links to articles - Copy results to clipboard to paste into other apps - Below is a limited list of modules, more modules are added frequently - Pacing maneuvers: para-Hisian pacing and RV apex vs base pacing - Heart rhythm drugs and anticoagulants reference: dabigatran, dofetilide, rivaroxaban, sotalol, apixaban, edoxaban - Creatinine clearance calculator - Warfarin clinic utility - Interval to rate conversion - QTc calculator (Bazett, Fridericia, Sagie and Hodges formulas) - Additional QTc calculators for IVCD - QT prolongation risk score - Date calculator - Atrial fibrillation risk scores (CHADS2, CHA2DS2-VASc, ATRIA scores) - Bleeding risk scores (HAS-BLED, HEMORR2HAGES, SAMe-TT2R2, ORBIT) - Hypertrophic Cardiomyopathy SCD risk scores (2002, 2014, 2022, 2024) - ICD implantation risk score - ICD mortality risk score - Syncope risk scores (EGSYS, Martin, OESIL, SF) - CMS (Medicare) ICD guidelines calculator, now updated to new 2018 criteria - Atrial tachycardia location algorithm - VT localization algorithms - Epicardial vs endocardial VT - Outflow tract VT - Mitral annular VT - Entrainment mapping - WPW accessory pathway location (Arruda, Modified Arruda, D'Avila, Milstein and others) - Long QT diagnosis, subtypes, and ECG patterns - Short QT syndrome diagnosis - Brugada syndrome diagnosis - Early Repolarization syndrome diagnosis - LVH ECG criteria, including Romhilt-Estes score and others - RVH ECG criteria - True LBBB criteria - ARVC/D 1994 and 2010 diagnostic criteria - ARVC/D risk calculator - Normal EP values - Wide complex tachycardia diagnosis
TRI
This medical app provides a dedicated risk-score model to predict outcomes for patients undergoing isolated tricuspid valve surgery. It utilizes pre-operative clinical, biological, and echocardiographic data to guide clinical decision-making in routine practice.
- Predicts surgical outcomes
- Uses clinical data
- Utilizes biological data
- Incorporates echocardiographic data
- Guides clinical decisions
- Dedicated risk-score model
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It is a simple, accurate and dedicated risk-score model to predict outcome after isolated tricuspid valve surgery for severe tricuspid regurgitation at an individual level according to the pre-operative clinical, biological and echocardiographic presentation. It has been developed from 466 consecutive adult patients who underwent an isolated tricuspid valve surgery on native valve for non- congenital severe tricuspid regurgitation at 12 tertiary French centers between January 1, 2007 and December 31, 2017. Its aim is to guide the clinical decision-making process in routine practice.
Screenshots
Verdict
The clearest difference is price: TRI at Free against EP Mobile's $1.99. TRI also leads on update cadence (daily vs every 3 months) and iOS requirement (8.0 vs 17.0). EP Mobile's advantage is chart position (#64 vs unranked) and ratings volume (4 vs 1). On rating, ads, in-app purchases and device support 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
TRI is free to download; EP Mobile costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for EP Mobile against 5.0 for TRI. Both are backed by a comparable volume of ratings — 4 and 1 respectively.
EP Mobile ships an update every 3 months, TRI daily. The most recent releases landed on November 10, 2026 and October 30, 2026 respectively.
| Parameter | EP Mobile | TRI |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 5.0 (4 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | 1 |
| Update frequency | Every 3 months | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | #64 — better | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 8.0 — better |
| Further details — not scored | ||
| Size | 13 MB | 37 MB |
| Age rating | 12+ | 17+ |
| Developer | EP Studios | ICP CONSEIL |
Customer experience
EP Mobile
TRI
In-app purchases
EP Mobile
No in-app purchases
TRI
No in-app purchases








