# CatDo vs Cat

The clearest difference is ads: CatDo at none against Cat's shown. Cat's advantage is update cadence (every 3 days vs every 10 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

CatDo ships an update every 10 months, Cat every 3 days. The most recent releases landed on October 7, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | CatDo | Cat |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 10 months | **Every 3 days** |
| Size | 117 MB | 33 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dinu Stefan Rusu](https://appshunter.io/developer/1697162965) | [Yuki Kuwahara](https://appshunter.io/developer/1464637125) |

## What reviewers say

### CatDo

[App page](https://appshunter.io/ios/app/catdo-your-study-buddy/id6751812918)

**Features:** macOS Compatibility

**In-app purchases:** none


### Cat

[App page](https://appshunter.io/ios/app/cat-todo/id6755334306)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CatDo free?

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

### Is Cat free?

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

### Do CatDo or Cat have ads?

Cat shows ads; CatDo does not.

### Which is updated more often, CatDo or Cat?

CatDo ships an update every 10 months, and Cat every 3 days. Most recently, CatDo was updated on October 7, 2026 and Cat on October 11, 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.*