# x vs Keep Building!

The clearest difference is price: Keep Building! at Free against x's $4.99. Keep Building! also leads on in-app purchases (none vs 3) and ads (none vs shown). x's advantage is iOS requirement (12.0 vs 14.0). On device support there is nothing between them.

Keep Building! is free to download; x costs $4.99 up front. x sells 3 one-off in-app purchases. Keep Building! asks for nothing beyond the download.

## The numbers

| Metric | x | Keep Building! |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | — |
| Size | 133 MB | 84 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [qiang li](https://appshunter.io/developer/1037589333) | [Leshan Wang184213996631](https://appshunter.io/developer/6775586929) |

## What reviewers say

### x

[App page](https://appshunter.io/ios/app/x-planet/id1671425060)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 0.99$ | $0.99 | one-time |
| 1.99$ | $1.99 | one-time |
| 2.99$ | $2.99 | one-time |


### Keep Building!

[App page](https://appshunter.io/ios/app/keep-building/id6775586927)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is x free?

x costs $4.99, and also offers in-app purchases.

### Is Keep Building! free?

Keep Building! is free to download, with no in-app purchases.

### Do x or Keep Building! have ads?

x shows ads; Keep Building! does not.

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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.*