# Metro Sort vs Cat Flap

The clearest difference is in-app purchases: Metro Sort at none against Cat Flap's 7. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Cat Flap sells 7 one-off in-app purchases. Metro Sort asks for nothing beyond the download.

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on November 8, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Metro Sort | Cat Flap |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Weekly | Weekly |
| Size | 226 MB | 327 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [TLC STUDIOS PRIVATE LIMITED](https://appshunter.io/developer/1438772593) | [BoomBit](https://appshunter.io/developer/942390447) |

## What reviewers say

### Metro Sort

[App page](https://appshunter.io/ios/app/metro-sort/id6748998833)

**Features:** macOS Compatibility

**In-app purchases:** none


### Cat Flap

[App page](https://appshunter.io/ios/app/cat-flap/id6802250646)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coins 500 | $3.99 | one-time |
| Coins 1500 | $3.99 | one-time |
| No Ads | $4.99 | one-time |
| Coins 3500 | $5.99 | one-time |
| Coins 8000 | $9.99 | one-time |
| Coins 20000 | $19.99 | one-time |
| Coins 45000 | $49.99 | one-time |


## Frequently asked questions

### Is Metro Sort free?

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

### Is Cat Flap free?

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

### Do Metro Sort or Cat Flap have ads?

Both Metro Sort and Cat Flap show ads.

### Which is updated more often, Metro Sort or Cat Flap?

Metro Sort ships an update weekly, and Cat Flap weekly. Most recently, Metro Sort was updated on November 8, 2026 and Cat Flap on November 10, 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.*