EHRA Key Messages vs EP Calipers
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EHRA Key Messages
Access a comprehensive library of expert guidelines and practical guides on heart rhythm management and related conditions. This app offers tools for bookmarking, note-taking, and calculations to aid in clinical decision-making.
- Expert heart rhythm guidelines
- Practical guides on arrhythmias
- Digital device management
- Bookmark and notes function
- Clinical scores and calculators
- Content sharing
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Adding to your expertise in the field of heart rhythm and connected diseases! Find the following Key Messages in this app: 2022 - How to use digital devices to detect and manage arrhythmias: An EHRA practical guide (2022) - EHRA consensus on prevention and management of interference due to medical procedures in patients with cardiac implantable electronic devices (CIED) (2022) 2021 - Optimal Implantation Technique for Conventional Pacemakers and Implantable Cardioverter-defibrillators - EHRA Practical Guide on the use of non-vitamin K antagonist oral anticoagulants in patients with atrial fibrillation - Quality indicators for the care and outcomes of adults with atrial fibrillation 2019 - Cardiac Implantable Electronic Device Infections - Catheter-based Left Atrial Appendage Occlusion 2018 - Antithrombotic Therapy in Valvular Atrial Fibrillation - Arrhythmias in Congenital Heart Diseases - Screening for Atrial Fibrillation 2017 - Chronic Kidney Disease - Management of Supraventricular Arrhythmias - Pre-participation Cardiovascular Evaluation for Athletic Participants to Prevent Sudden Death Additionally, this app provides bookmark and notes function, scores and calculators and sharing of the content. Find all detailed information you need about heart rhythm related issues by one single click.
EP Calipers
This medical app allows users to measure intervals and angles on electrocardiogram (ECG) images. It's designed for healthcare professionals to accurately analyze ECGs from photos or PDFs, aiding in calculations like heart rate and QT intervals.
- Measure ECG intervals
- Measure ECG angles
- Calculate mean heart rate
- Determine corrected QT interval
- Analyze ECG photos and PDFs
- Supports Brugada syndrome beta angle measurement
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EP Calipers provides electronic calipers to measure intervals on images of electrocardiograms (ECGs) or electrophysiologic recordings. Doctors, nurses and medical technicians photograph and send ECGs to each other via email and messaging using smart phones and tablets. It is difficult and inaccurate to make measurements on these images with mechanical calipers. EP Calipers can be used to make accurate ECG measurements and do calculations such as determining mean heart rate and corrected QT interval. Angles such as the beta angle in Brugada syndrome can be measured as well. Analyze ECG images you photograph or store on your device, as well as PDF files, such as ECGs generated by the AliveCor Kardia™ device.
Screenshots
Verdict
The clearest difference is review sentiment: EP Calipers at 50% against EHRA Key Messages's 0%. EHRA Key Messages's advantage is price (Free vs $1.99) and rating (4.7 vs 2.3). On update cadence, 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
EHRA Key Messages is free to download; EP Calipers costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
EHRA Key Messages holds the better App Store score, 4.7 against 2.3. Both are backed by a comparable volume of ratings — 28 and 6 respectively. Written reviews complicate that: 0% of EHRA Key Messages's written reviews are positive against 50% of EP Calipers's, so the app with the better star average is not the one people write more warmly about.
EHRA Key Messages ships an update every 6 months, EP Calipers every 3 months. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.
| Parameter | EHRA Key Messages | EP Calipers |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.7 (28 ratings) — better | 2.3 (6 ratings) |
| Positive reviews | 0.0% of reviews | 50.0% of reviews — better |
| Number of ratings | 28 — better | 6 |
| Update frequency | Every 6 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 159 MB | 14 MB |
| Age rating | 12+ | 12+ |
| Developer | ESC - European Society of Cardiology | EP Studios |
Customer experience
EHRA Key Messages
EP Calipers
In-app purchases
EHRA Key Messages
No in-app purchases
EP Calipers
No in-app purchases
Questions
Is EHRA Key Messages free?
Is EP Calipers free?
Which has better reviews, EHRA Key Messages or EP Calipers?
Do EHRA Key Messages or EP Calipers have ads?
Which is updated more often, EHRA Key Messages or EP Calipers?
Other comparisons
