# One Line Cat vs Rubber Flex

The clearest difference is in-app purchases: One Line Cat at none against Rubber Flex's 3. Rubber Flex's advantage is iOS requirement (12.0 vs 14.0). On price, ads and device support there is nothing between them.

Both are free to download. Rubber Flex sells 3 one-off in-app purchases. One Line Cat asks for nothing beyond the download.

## The numbers

| Metric | One Line Cat | Rubber Flex |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 9 days | — |
| 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) | [Berat Oguz](https://appshunter.io/developer/1124816969) |

## What reviewers say

### One Line Cat

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Rubber Flex

[App page](https://appshunter.io/ios/app/rubber-flex/id6502682891)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 150coin | $2.99 | one-time |
| 800coin | $13.99 | one-time |
| 3000coin | $41.99 | one-time |


## Frequently asked questions

### Is One Line Cat free?

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

### Is Rubber Flex free?

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

### Do One Line Cat or Rubber Flex have ads?

Both One Line Cat and Rubber Flex show ads.

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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.*