# NextDigit vs Rube’s Lab

The clearest difference is in-app purchases: NextDigit at none against Rube’s Lab's 7. NextDigit also leads on ads (none vs shown) and iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. Rube’s Lab sells 7 one-off in-app purchases. NextDigit asks for nothing beyond the download.

## The numbers

| Metric | NextDigit | Rube’s Lab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Size | 21 MB | 114 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BK Kejera](https://appshunter.io/developer/1707608873) | [Volodymyr Bouland](https://appshunter.io/developer/1876634444) |

## What reviewers say

### NextDigit

[App page](https://appshunter.io/ios/app/nextdigit/id6749207255)

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

**In-app purchases:** none


### Rube’s Lab

[App page](https://appshunter.io/ios/app/rubes-lab-physics-puzzle/id6759068159)

**Features:** macOS Compatibility

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 20 Gems | $0.99 | one-time |
| 100 Gems | $1.99 | one-time |
| 200 Gems | $2.99 | one-time |
| Starter Pack | $2.99 | one-time |
| Pro Version | $2.99 | one-time |
| 500 Gems | $3.99 | one-time |
| 1000 Gems | $4.99 | one-time |


## Frequently asked questions

### Is NextDigit free?

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

### Is Rube’s Lab free?

Rube’s Lab is free to download, with in-app purchases available.

### Do NextDigit or Rube’s Lab have ads?

Rube’s Lab shows ads; NextDigit 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.*