---
title: "EP QTc - Reviews, Revenue and Downloads in United States | Apple App Store"
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 sta"
---

# EP QTc — United States
> Ultimate QTc calculator

![EP QTc App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/1a/1b/ba/1a1bba07-8d2b-34f5-f196-7ad4f9028f39/epqtc_app_liquid_glass-0-0-1x_U007epad-0-1-85-220.png/434x0w.png)

**Developer:** [EP Studios](https://apptail.io/developer/ep-studios-rYx)
**Category:** Medical
**Rating:** 5.0/5 (1 ratings)
**Price:** $0.99
**Bundle ID:** org.epstudios.EP-QTc
**Store:** Apple App Store
**Country:** United States
**Version:** 1.11.0 (released 2026-10-22)
**Original Release:** 2018-07-10
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1393849228)
**AppTail Page:** [https://apptail.io/app/ep-qtc-mBpe/united-states](https://apptail.io/app/ep-qtc-mBpe/united-states)

## EP QTc 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.

## EP QTc Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/23/d1/dc/23d1dc48-da10-680b-86dc-64401d40b6c8/pr_source.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/57/88/42/57884275-3a0a-385d-b2cc-d9ba2f3ef6bc/pr_source.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/90/ee/19/90ee19af-bf03-f753-70c5-6dbabbc92426/pr_source.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/55/13/95/55139516-fe14-e3aa-978a-ee2b4f9c7be6/pr_source.png/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/88/53/45/885345c6-eca5-27af-b0f4-37a4d7a2dac1/pr_source.png/1242x2688.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/74/90/5d/74905d7c-fbbe-3f24-e303-871896a9b087/pr_source.png/1242x2688.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/87/3a/b0/873ab02c-53ae-90de-a66b-fa13d2d4e530/pr_source.png/1242x2688.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/af/d2/8f/afd28f26-f9ba-ab12-7e5a-cc990fb6bdb6/pr_source.png/1242x2688.png)
- [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/d7/11/08/d7110887-2b0d-15cb-474e-bd888dcab820/pr_source.png/1242x2688.png)
- [Screenshot 10](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/75/62/3e/75623edc-f70b-d9ef-4ea4-d7049cca5c8f/pr_source.png/1242x2688.png)

## EP QTc Rating Breakdown in United States
- 5 stars: 1 (100%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)



## EP QTc Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Paid | Peru | Medical | #147 |
| Top Paid | Russia | Medical | #157 |
| Top Paid | Ukraine | Medical | #196 |
| Top Paid | Türkiye | Medical | #224 |
| Top Paid | Italy | Medical | #233 |


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## EP QTc Available In
- [United States](https://apptail.io/app/ep-qtc-mBpe/united-states)
- [United Kingdom](https://apptail.io/app/ep-qtc-mBpe/united-kingdom)
- [Romania](https://apptail.io/app/ep-qtc-mBpe/romania)
- [Australia](https://apptail.io/app/ep-qtc-mBpe/australia)
- [Azerbaijan](https://apptail.io/app/ep-qtc-mBpe/azerbaijan)
- [Belgium](https://apptail.io/app/ep-qtc-mBpe/belgium)
- [Brazil](https://apptail.io/app/ep-qtc-mBpe/brazil)
- [Belarus](https://apptail.io/app/ep-qtc-mBpe/belarus)
- [Canada](https://apptail.io/app/ep-qtc-mBpe/canada)
- [Switzerland](https://apptail.io/app/ep-qtc-mBpe/switzerland)
- [Chile](https://apptail.io/app/ep-qtc-mBpe/chile)
- [China](https://apptail.io/app/ep-qtc-mBpe/china)
- [Colombia](https://apptail.io/app/ep-qtc-mBpe/colombia)
- [Czechia](https://apptail.io/app/ep-qtc-mBpe/czechia)
- [Germany](https://apptail.io/app/ep-qtc-mBpe/germany)
- [Denmark](https://apptail.io/app/ep-qtc-mBpe/denmark)
- [Dominican Republic](https://apptail.io/app/ep-qtc-mBpe/dominican-republic)
- [Algeria](https://apptail.io/app/ep-qtc-mBpe/algeria)
- [Ecuador](https://apptail.io/app/ep-qtc-mBpe/ecuador)
- [Egypt](https://apptail.io/app/ep-qtc-mBpe/egypt)
- [Spain](https://apptail.io/app/ep-qtc-mBpe/spain)
- [Finland](https://apptail.io/app/ep-qtc-mBpe/finland)
- [France](https://apptail.io/app/ep-qtc-mBpe/france)
- [Greece](https://apptail.io/app/ep-qtc-mBpe/greece)
- [Hong Kong SAR China](https://apptail.io/app/ep-qtc-mBpe/hong-kong)
- [Hungary](https://apptail.io/app/ep-qtc-mBpe/hungary)
- [Indonesia](https://apptail.io/app/ep-qtc-mBpe/indonesia)
- [Ireland](https://apptail.io/app/ep-qtc-mBpe/ireland)
- [Israel](https://apptail.io/app/ep-qtc-mBpe/israel)
- [India](https://apptail.io/app/ep-qtc-mBpe/india)
- [Italy](https://apptail.io/app/ep-qtc-mBpe/italy)
- [Japan](https://apptail.io/app/ep-qtc-mBpe/japan)
- [South Korea](https://apptail.io/app/ep-qtc-mBpe/south-korea)
- [Kuwait](https://apptail.io/app/ep-qtc-mBpe/kuwait)
- [Kazakhstan](https://apptail.io/app/ep-qtc-mBpe/kazakhstan)
- [Lebanon](https://apptail.io/app/ep-qtc-mBpe/lebanon)
- [Mexico](https://apptail.io/app/ep-qtc-mBpe/mexico)
- [Malaysia](https://apptail.io/app/ep-qtc-mBpe/malaysia)
- [Nigeria](https://apptail.io/app/ep-qtc-mBpe/nigeria)
- [Netherlands](https://apptail.io/app/ep-qtc-mBpe/netherlands)
- [Norway](https://apptail.io/app/ep-qtc-mBpe/norway)
- [New Zealand](https://apptail.io/app/ep-qtc-mBpe/new-zealand)
- [Peru](https://apptail.io/app/ep-qtc-mBpe/peru)
- [Philippines](https://apptail.io/app/ep-qtc-mBpe/philippines)
- [Pakistan](https://apptail.io/app/ep-qtc-mBpe/pakistan)
- [Poland](https://apptail.io/app/ep-qtc-mBpe/poland)
- [Portugal](https://apptail.io/app/ep-qtc-mBpe/portugal)
- [Russia](https://apptail.io/app/ep-qtc-mBpe/russia)
- [Saudi Arabia](https://apptail.io/app/ep-qtc-mBpe/saudi-arabia)
- [Sweden](https://apptail.io/app/ep-qtc-mBpe/sweden)
- [Singapore](https://apptail.io/app/ep-qtc-mBpe/singapore)
- [Thailand](https://apptail.io/app/ep-qtc-mBpe/thailand)
- [Türkiye](https://apptail.io/app/ep-qtc-mBpe/turkey)
- [Taiwan](https://apptail.io/app/ep-qtc-mBpe/taiwan)
- [Ukraine](https://apptail.io/app/ep-qtc-mBpe/ukraine)
- [Vietnam](https://apptail.io/app/ep-qtc-mBpe/vietnam)
- [United Arab Emirates](https://apptail.io/app/ep-qtc-mBpe/united-arab-emirates)
- [South Africa](https://apptail.io/app/ep-qtc-mBpe/south-africa)
- [Argentina](https://apptail.io/app/ep-qtc-mBpe/argentina)
- [Austria](https://apptail.io/app/ep-qtc-mBpe/austria)

---

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