# Cat AI vs Study Sprint Timer

The clearest difference is ads: Cat AI at none against Study Sprint Timer's shown. Cat AI also leads on update cadence (daily vs every 5 days) and iOS requirement (16.4 vs 18.0). Study Sprint Timer's advantage is device support (3 vs 1). On price and in-app purchases there is nothing between them.

Both are free to download. Cat AI sells 4 one-off in-app purchases and Study Sprint Timer sells 1 in-app purchase, starting at $19.99 per year. Whichever you choose, the download price is not the number that matters.

Cat AI ships an update daily, Study Sprint Timer every 5 days. The most recent releases landed on September 10, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Cat AI | Study Sprint Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Every 5 days |
| Size | 63 MB | 76 MB |
| Requires iOS | **16.4** | 18.0 |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Hyeon Jin Ko](https://appshunter.io/developer/1871874564) | [Harun DOGDU](https://appshunter.io/developer/6788031683) |

## What reviewers say

### Cat AI

[App page](https://appshunter.io/ios/app/cat-ai-homework-helper/id6781688668)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 물고기 250개 | $0.99 | one-time |
| 물고기 4400개 | $5.99 | one-time |
| 물고기 8000개 | $11.99 | one-time |
| 물고기 25000개 | $29.99 | one-time |


### Study Sprint Timer

[App page](https://appshunter.io/ios/app/study-sprint-timer/id6788031531)

**Features:** Family Sharing, Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly Premium | $19.99 | per year |


## Frequently asked questions

### Is Cat AI free?

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

### Is Study Sprint Timer free?

Study Sprint Timer is free to download, with in-app purchases available.

### Do Cat AI or Study Sprint Timer have ads?

Study Sprint Timer shows ads; Cat AI does not.

### Which is updated more often, Cat AI or Study Sprint Timer?

Cat AI ships an update daily, and Study Sprint Timer every 5 days. Most recently, Cat AI was updated on September 10, 2026 and Study Sprint Timer on September 17, 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.*