# CatDo vs Waddle

The clearest difference is in-app purchases: CatDo at none against Waddle's 6. CatDo also leads on device support (3 vs 1) and iOS requirement (15.0 vs 18.5). Waddle's advantage is update cadence (every 5 days vs every 10 months). On price and ads there is nothing between them.

Both are free to download. Waddle sells 6 in-app purchases, starting at $3.99 per 7 days. CatDo asks for nothing beyond the download.

CatDo ships an update every 10 months, Waddle every 5 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | CatDo | Waddle |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 5 days** |
| Size | 117 MB | 213 MB |
| Requires iOS | **15.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Dinu Stefan Rusu](https://appshunter.io/developer/1697162965) | [1532863 B.C. Ltd.](https://appshunter.io/developer/1817947952) |

## What reviewers say

### CatDo

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Waddle

[App page](https://appshunter.io/ios/app/waddle-habit-tracker-game/id6754371326)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Captain's Club - Weekly | $3.99 | per 7 days |
| Captain's Club - Monthly | $6.99 | per month |
| Captain's Club - Annnual | $59.99 | per year |
| Sherlock Hat | $1.99 | one-time |
| Pom-Pom Hat | $1.99 | one-time |
| Top Hat | $2.99 | one-time |


## Frequently asked questions

### Is CatDo free?

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

### Is Waddle free?

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

### Do CatDo or Waddle have ads?

Neither CatDo nor Waddle shows ads.

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

CatDo ships an update every 10 months, and Waddle every 5 days. Most recently, CatDo was updated on October 25, 2026 and Waddle on October 25, 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.*