# IS RT vs Tortue Mania

The clearest difference is update cadence: Tortue Mania at every 2 weeks against IS RT's every 5 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

IS RT ships an update every 5 months, Tortue Mania every 2 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | IS RT | Tortue Mania |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Size | 28 MB | 50 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Institut de Soudure](https://appshunter.io/developer/1735474226) | [Guillaume Bretillard](https://appshunter.io/developer/1896521695) |

## What reviewers say

### IS RT

[App page](https://appshunter.io/ios/app/is-rt/id6479296879)

**Features:** macOS Compatibility

**In-app purchases:** none


### Tortue Mania

[App page](https://appshunter.io/ios/app/tortue-mania/id6767930067)

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

**In-app purchases:** none


## Frequently asked questions

### Is IS RT free?

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

### Is Tortue Mania free?

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

### Do IS RT or Tortue Mania have ads?

Neither IS RT nor Tortue Mania shows ads.

### Which is updated more often, IS RT or Tortue Mania?

IS RT ships an update every 5 months, and Tortue Mania every 2 weeks. Most recently, IS RT was updated on October 25, 2026 and Tortue Mania on October 24, 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.*