# Indoor Ninja vs Rotermann

The clearest difference is update cadence: Indoor Ninja at every 5 days against Rotermann's every 2 weeks. Indoor Ninja also leads on iOS requirement (12.0 vs 15.0). 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.

Indoor Ninja ships an update every 5 days, Rotermann every 2 weeks. The most recent releases landed on September 8, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Indoor Ninja | Rotermann |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 weeks |
| Size | 62 MB | 155 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Indoor.Ninja OÜ](https://appshunter.io/developer/1270187985) | [Sharry Europe s.r.o.](https://appshunter.io/developer/1231851310) |

## What reviewers say

### Indoor Ninja

[App page](https://appshunter.io/ios/app/indoor-ninja/id1270187986)

**In-app purchases:** none


### Rotermann

[App page](https://appshunter.io/ios/app/rotermann/id6756295540)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Indoor Ninja free?

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

### Is Rotermann free?

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

### Do Indoor Ninja or Rotermann have ads?

Neither Indoor Ninja nor Rotermann shows ads.

### Which is updated more often, Indoor Ninja or Rotermann?

Indoor Ninja ships an update every 5 days, and Rotermann every 2 weeks. Most recently, Indoor Ninja was updated on September 8, 2026 and Rotermann on September 20, 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.*