EP Calipers vs EPLog
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
EPLog
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EPLog is a personal case logging app for electrophysiology procedures. Track ablations, device implants, and cardiovascular interventions with detailed procedural data, CHA₂DS₂-VASc scoring, and PDF case report export.
Screenshots
Verdict
The clearest difference is device support: EP Calipers at 3 against EPLog's 1. EP Calipers also leads on iOS requirement (14.0 vs 18.1). EPLog's advantage is price ($0.99 vs $1.99). On update cadence, ads and in-app purchases 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
EP Calipers costs $1.99 and EPLog $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
EP Calipers ships an update every 3 months, EPLog every 4 months. The most recent releases landed on September 13, 2026 and September 15, 2026 respectively.
| Parameter | EP Calipers | EPLog |
|---|---|---|
| Price | $1.99 | $0.99 — better |
| Rating | 2.3 (6 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 6 — better | — |
| Update frequency | Every 3 months — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.0 — better | 18.1 |
| Further details — not scored | ||
| Size | 9 MB | 3 MB |
| Age rating | 12+ | 4+ |
| Developer | EP Studios | Matthew Segar |
In-app purchases
EP Calipers
No in-app purchases
EPLog
No in-app purchases
