# One Line Cat vs Sort Merge 3D

The clearest difference is update cadence: One Line Cat at every 9 days against Sort Merge 3D's every 5 months. Sort Merge 3D's advantage is iOS requirement (12.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

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

One Line Cat ships an update every 9 days, Sort Merge 3D every 5 months. The most recent releases landed on October 21, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | One Line Cat | Sort Merge 3D |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 9 days** | Every 5 months |
| Size | 65 MB | 95 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [北京微力量科技有限公司](https://appshunter.io/developer/1689176501) | [omer cetin](https://appshunter.io/developer/1584332419) |

## What reviewers say

### One Line Cat

[App page](https://appshunter.io/ios/app/one-line-cat/id6466617385)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sort Merge 3D

[App page](https://appshunter.io/ios/app/sort-merge-3d/id6468884074)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is One Line Cat free?

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

### Is Sort Merge 3D free?

Sort Merge 3D is free to download, with no in-app purchases.

### Do One Line Cat or Sort Merge 3D have ads?

Both One Line Cat and Sort Merge 3D show ads.

### Which is updated more often, One Line Cat or Sort Merge 3D?

One Line Cat ships an update every 9 days, and Sort Merge 3D every 5 months. Most recently, One Line Cat was updated on October 21, 2026 and Sort Merge 3D on October 18, 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.*