# Rat Zone vs 100 Music

The clearest difference is in-app purchases: Rat Zone at none against 100 Music's 1. Rat Zone also leads on iOS requirement (14.0 vs 17.0). 100 Music's advantage is update cadence (every 4 days vs every 8 months). On price, ads and device support there is nothing between them.

Both are free to download. 100 Music sells 1 one-off in-app purchase. Rat Zone asks for nothing beyond the download.

Rat Zone ships an update every 8 months, 100 Music every 4 days. The most recent releases landed on November 6, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Rat Zone | 100 Music |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (19 ratings)](https://appshunter.io/ios/app/rat-zone/id1449538595/reviews)** | — |
| Number of ratings | **19** | — |
| Positive reviews | 90.9% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 123 MB | 77 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [arludo Pty Ltd](https://appshunter.io/developer/1023251086) | [Sami Kuribara](https://appshunter.io/developer/1891970492) |

## What reviewers say

### Rat Zone

[App page](https://appshunter.io/ios/app/rat-zone/id1449538595)

Experience a virtual conditioning experiment with your own digital rat. Explore Pavlovian and instrumental conditioning concepts, and see how your rat's behavior changes with treats and augmented reality interactions.

**Highlights:** Virtual rat conditioning experiments, Pavlovian conditioning concepts, Instrumental conditioning concepts, Augmented Reality mode, Behavioral observation, Interactive treat feeding

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

**In-app purchases:** none


### 100 Music

[App page](https://appshunter.io/ios/app/100-music-instruments/id6762078610)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - All 100 Instruments | $3.99 | one-time |


## Frequently asked questions

### Is Rat Zone free?

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

### Is 100 Music free?

100 Music is free to download, with in-app purchases available.

### Do Rat Zone or 100 Music have ads?

Neither Rat Zone nor 100 Music shows ads.

### Which is updated more often, Rat Zone or 100 Music?

Rat Zone ships an update every 8 months, and 100 Music every 4 days. Most recently, Rat Zone was updated on November 6, 2026 and 100 Music on November 5, 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.*