# Cats World vs Spot the Difference

The clearest difference is in-app purchases: Cats World at none against Spot the Difference's 1. Cats World also leads on ads (none vs shown). Spot the Difference's advantage is update cadence (monthly vs every 7 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Spot the Difference sells 1 one-off in-app purchase. Cats World asks for nothing beyond the download.

Cats World ships an update every 7 months, Spot the Difference monthly. Both last shipped on October 30, 2026.

## The numbers

| Metric | Cats World | Spot the Difference |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cats-world/id6502180606/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Monthly** |
| Monetization | Free | — |
| Size | 40 MB | 138 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Toprak Kamuran](https://appshunter.io/developer/1738762474) | [Yusuke Okada](https://appshunter.io/developer/1793725878) |

## What reviewers say

### Cats World

[App page](https://appshunter.io/ios/app/cats-world/id6502180606)

Explore detailed information on 78 cat breeds, including activity levels, docility, and trainability. This app offers a selection assistant, health guides, and vaccination management to help you find and care for your ideal feline companion. It supports 9 languages for a global cat-loving community.

**Highlights:** Detailed cat breed information, Cat selection assistant, Vaccination schedule management, Cat health guide, Multilingual support (9 languages)

**Features:** macOS Compatibility

**In-app purchases:** none


### Spot the Difference

[App page](https://appshunter.io/ios/app/spot-the-difference-cats/id6756172944)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.49 | one-time |


## Frequently asked questions

### Is Cats World free?

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

### Is Spot the Difference free?

Spot the Difference is free to download, with in-app purchases available.

### Do Cats World or Spot the Difference have ads?

Spot the Difference shows ads; Cats World does not.

### Which is updated more often, Cats World or Spot the Difference?

Cats World ships an update every 7 months, and Spot the Difference monthly. Most recently, Cats World was updated on October 30, 2026 and Spot the Difference on October 30, 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.*