Comparison

EP QTc 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 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.

Highlights
  • 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
Features
Currently charting
Read full description

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.

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 QTc4 screens
ECG3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

EP QTc ships an update every 7 months, ECG fortnightly. The most recent releases landed on October 29, 2026 and October 27, 2026 respectively.

Scorecard5 real differences · 5 level
EP QTc versus ECG: the parameters behind the verdict, then further details
ParameterEP QTcECG
Price$0.99Free — better
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 7 monthsFortnightly — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationPaid—
Best chart rank#190 — better—
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS17.012.0 — better
Further details — not scored
Size8 MB37 MB
Age rating12+12+
DeveloperEP StudiosPutu Angga Risky Raharja

In-app purchases

None

EP QTc

No in-app purchases

None

ECG

No in-app purchases

Questions

Is EP QTc free?
EP QTc costs $0.99, with no in-app purchases.
Is ECG free?
ECG is free to download, with no in-app purchases.
Do EP QTc or ECG have ads?
ECG shows ads; EP QTc does not.
Which is updated more often, EP QTc or ECG?
EP QTc ships an update every 7 months, and ECG fortnightly. Most recently, EP QTc was updated on October 29, 2026 and ECG on October 27, 2026.

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