# Nottu vs Cat AI

The clearest difference is in-app purchases: Cat AI at none against Nottu's 3. Nottu's advantage is update cadence (fortnightly vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Nottu sells 3 in-app purchases, starting at $9.99 per month. Cat AI asks for nothing beyond the download.

Nottu ships an update fortnightly, Cat AI every 4 months. The most recent releases landed on October 16, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Nottu | Cat AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 months |
| Size | 98 MB | 59 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rupinder Singh](https://appshunter.io/developer/1827216529) | [Abdelrahman Hassan](https://appshunter.io/developer/6773110949) |

## What reviewers say

### Nottu

[App page](https://appshunter.io/ios/app/nottu/id6748740430)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Spark | $9.99 | per month |
| Edge | $29.99 | per month |
| Genius | $59.99 | per month |


### Cat AI

[App page](https://appshunter.io/ios/app/cat-ai-ai-learning-platform/id6773110947)

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

**In-app purchases:** none


## Frequently asked questions

### Is Nottu free?

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

### Is Cat AI free?

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

### Do Nottu or Cat AI have ads?

Neither Nottu nor Cat AI shows ads.

### Which is updated more often, Nottu or Cat AI?

Nottu ships an update fortnightly, and Cat AI every 4 months. Most recently, Nottu was updated on October 16, 2026 and Cat AI on October 13, 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.*