# Kontrendike vs Rapida Rhythm

The clearest difference is in-app purchases: Kontrendike at none against Rapida Rhythm's 3. Kontrendike also leads on iOS requirement (8.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. Rapida Rhythm sells 3 one-off in-app purchases. Kontrendike asks for nothing beyond the download.

## The numbers

| Metric | Kontrendike | Rapida Rhythm |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Monetization | Free | — |
| Size | 9 MB | 58 MB |
| Requires iOS | **8.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [ILKO ILAC SANAYI VE TICARET ANONIM SIRKETI](https://appshunter.io/developer/1123603630) | [Ahmet Kabatas](https://appshunter.io/developer/1836276047) |

## What reviewers say

### Kontrendike

[App page](https://appshunter.io/ios/app/kontrendike/id1205919061)

This medical app assists healthcare professionals by providing information on contraindications for prescription drugs. It references official drug information to help users make informed decisions in their daily practice.

**Highlights:** Drug contraindication information, References official drug information, Assists daily prescription practice, Focuses on patient health and physician responsibility

**Features:** macOS Compatibility

**In-app purchases:** none


### Rapida Rhythm

[App page](https://appshunter.io/ios/app/rapida-rhythm/id6751716376)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1-month ECG analysis package | $3.99 | one-time |
| 4-month ECG analysis package | $12.99 | one-time |
| 6-month ECG analysis package | $34.99 | one-time |


## Frequently asked questions

### Is Kontrendike free?

Kontrendike is free to download, with no in-app purchases.

### Is Rapida Rhythm free?

Rapida Rhythm is free to download, with in-app purchases available.

### Do Kontrendike or Rapida Rhythm have ads?

Neither Kontrendike nor Rapida Rhythm shows ads.

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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.*