# Interactions Médicaments vs EP QTc

The clearest difference is price: EP QTc at $0.99 against Interactions Médicaments's $7.99. Interactions Médicaments's advantage is update cadence (every 3 months vs every 7 months). On ads, in-app purchases, monetization model and device support there is nothing between them.

Interactions Médicaments costs $7.99 and EP QTc $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Interactions Médicaments ships an update every 3 months, EP QTc every 7 months. Both last shipped on October 26, 2026.

## The numbers

| Metric | Interactions Médicaments | EP QTc |
| --- | --- | --- |
| Price | $7.99 | **$0.99** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ep-qtc/id1393849228/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 7 months |
| Monetization | Paid | Paid |
| Size | 1 MB | 8 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 17+ | 12+ |
| Developer | [Pierre Chaillet](https://appshunter.io/developer/481949152) | [EP Studios](https://appshunter.io/developer/574231798) |

## What reviewers say

### Interactions Médicaments

[App page](https://appshunter.io/ios/app/interactions-medicaments/id483840376)

This app provides referenced information on drug interactions. It allows users to check all interactions with a given medication or verify a prescription. Information includes danger level, effects, mechanisms, risk factors, management, and bibliographic references.

**Highlights:** Drug interaction information, Prescription verification, Danger level assessment, Mechanism and risk factor details, Management guidance, Bibliographic references, Drug substitution suggestions

**Features:** Vision Pro support

**In-app purchases:** none


### EP QTc

[App page](https://appshunter.io/ios/app/ep-qtc/id1393849228)

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:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Interactions Médicaments free?

Interactions Médicaments costs $7.99, with no in-app purchases.

### Is EP QTc free?

EP QTc costs $0.99, with no in-app purchases.

### Do Interactions Médicaments or EP QTc have ads?

Neither Interactions Médicaments nor EP QTc shows ads.

### Which is updated more often, Interactions Médicaments or EP QTc?

Interactions Médicaments ships an update every 3 months, and EP QTc every 7 months. Most recently, Interactions Médicaments was updated on October 26, 2026 and EP QTc on October 26, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*