EP QTc vs ECG
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EP QTc
This medical app provides over 30 formulas for calculating corrected and predicted QT intervals (QTc and QTp). It includes details on each formula, reference links, statistical analysis, and graphing of results. Definitions of normal and abnormal QTc intervals are also provided.
- Over 30 QTc and QTp calculation formulas
- Detailed formula information and references
- Statistical analysis of results
- Graphical representation of data
- Definitions of normal/abnormal QTc intervals
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This app collects over 30 published formulas for calculating the corrected and predicted QT interval (QTc and QTp). Included are details on each formula and reference links. Results are analyzed statistically and graphed. Published definitions of normal and abnormal QTc intervals are also included. This is no ordinary calculator that just gives you the results of Bazett's formula. If you are interested in this fascinating corner of electrocardiology, this app is for you.
ECG
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"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
Verdict
The clearest difference is price: ECG at Free against EP QTc's $0.99. ECG also leads on update cadence (fortnightly vs every 7 months) and iOS requirement (12.0 vs 17.0). EP QTc's advantage is ads (none vs shown) and chart position (#190 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
ECG is free to download; EP QTc costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
EP QTc ships an update every 7 months, ECG fortnightly. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.
| Parameter | EP QTc | ECG |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 7 months | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Best chart rank | #190 — better | — |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 17.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 8 MB | 37 MB |
| Age rating | 12+ | 12+ |
| Developer | EP Studios | Putu Angga Risky Raharja |
In-app purchases
EP QTc
No in-app purchases
ECG
No in-app purchases








