# Study Kitty vs CatDo

The clearest difference is in-app purchases: CatDo at none against Study Kitty's 6. Study Kitty's advantage is update cadence (every 4 months vs every 10 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Study Kitty sells 6 in-app purchases, starting at $4.99 per month. CatDo asks for nothing beyond the download.

Study Kitty ships an update every 4 months, CatDo every 10 months. The most recent releases landed on October 1, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Study Kitty | CatDo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/study-kitty/id6749342191/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 10 months |
| Monetization | Freemium | — |
| Size | 48 MB | 117 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Elvin Ly](https://appshunter.io/developer/1830125255) | [Dinu Stefan Rusu](https://appshunter.io/developer/1697162965) |

## What reviewers say

### Study Kitty

[App page](https://appshunter.io/ios/app/study-kitty/id6749342191)

This app uses a gamified timer to help you stay focused and productive. Earn coins for concentration time to upgrade a virtual cat café, unlock new cats, and track your progress. Build better habits with gentle reminders and cloud sync.

**Highlights:** Gamified focus timer, Cat café upgrades, Cat collection, Productivity stats, Gentle reminders, Cloud sync

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Study Kitty Pro | $4.99 | per month |
| Yearly Study Kitty Pro | $29.99 | per year |
| 100 Coins | $0.99 | one-time |
| 550 Coins | $4.99 | one-time |
| 1200 Coins | $9.99 | one-time |
| 2500 Coins | $19.99 | one-time |


### CatDo

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Study Kitty free?

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

### Is CatDo free?

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

### Do Study Kitty or CatDo have ads?

Neither Study Kitty nor CatDo shows ads.

### Which is updated more often, Study Kitty or CatDo?

Study Kitty ships an update every 4 months, and CatDo every 10 months. Most recently, Study Kitty was updated on October 1, 2026 and CatDo on October 7, 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.*