Comparison

EP Calipers vs ECG

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

Head to head
About

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.

Highlights
  • 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
Features
Currently charting
Read full description

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.

About

ECG

Features
Read full description

"ECG - Corrected QT Interval: Electrocardiogram Rhythm App” is designed to help health professional to assess the QT interval from an electrocardiogram (ECG) result. The QT interval in electrocardiogram (ECG) is representing ventricles depolarization and repolarization. Why should you choose "ECG - Corrected QT Interval: Electrocardiogram Rhythm App"? - Simple and very easy to use. - Accurate and precise calculation. - There are three formulas (Bazzet, Fredericia, and Framingham) to calculate corrected QT interval (QTc) - It is totally free. Download now! The QT interval is affected by heart rates, so we need to calculate the corrected QT interval (QTc). The corrected QT interval (QTc) will estimate the QT interval at a heart rate of 60 beats per minute. Prolonged corrected QT interval (QTc) is associated with ventricular arrhythmias, especially Torsades de Pointes. "ECG - Corrected QT Interval: Electrocardiogram Rhythm App" app is a practical medical calculator to calculate the corrected QT interval (QTc). In "ECG - Corrected QT Interval: Electrocardiogram Rhythm App", the user need to input the QT interval (in millisecond) and heart rate (in beats per minute) to calculate the corrected QT interval (QTc). "ECG - Corrected QT Interval: Electrocardiogram Rhythm App" have three available formulas, namely Bazzet, Fredericia, and Framingham. Disclaimer: all calculations must be re-checked and should not be used alone to guide patient care, nor should they substitute for clinical judgment. Calculations in this “ECG - Corrected QT Interval: Electrocardiogram Rhythm App” app might be different with your local practice. Consult to expert doctor whenever necessary.

Screenshots

EP Calipers4 screens
ECG3 screens

Verdict

The call

The clearest difference is price: ECG at Free against EP Calipers's $1.99. ECG also leads on update cadence (fortnightly vs every 3 months) and iOS requirement (12.0 vs 17.6). EP Calipers's advantage is ads (none vs shown) and chart position (#126 vs unranked). On 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

CostPrice · In-app purchases · Ads · Monetization

ECG is free to download; EP Calipers costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

EP Calipers ships an update every 3 months, ECG fortnightly. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

Scorecard5 real differences · 6 level
EP Calipers versus ECG: the parameters behind the verdict, then further details
ParameterEP CalipersECG
Price$1.99Free — better
Rating2.3 (6 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 3 monthsFortnightly — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationPaid—
Best chart rank#126 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.612.0 — better
Further details — not scored
Size14 MB37 MB
Age rating12+12+
DeveloperEP StudiosPutu Angga Risky Raharja

In-app purchases

None

EP Calipers

No in-app purchases

None

ECG

No in-app purchases

Questions

Is EP Calipers free?
EP Calipers costs $1.99, with no in-app purchases.
Is ECG free?
ECG is free to download, with no in-app purchases.
Do EP Calipers or ECG have ads?
ECG shows ads; EP Calipers does not.
Which is updated more often, EP Calipers or ECG?
EP Calipers ships an update every 3 months, and ECG fortnightly. Most recently, EP Calipers was updated on October 24, 2026 and ECG on October 7, 2026.

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