# Missing Digits vs KEEPYBOO

The clearest difference is in-app purchases: Missing Digits at none against KEEPYBOO's 10. Missing Digits also leads on ads (none vs shown). KEEPYBOO's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price there is nothing between them.

Both are free to download. KEEPYBOO sells 10 one-off in-app purchases. Missing Digits asks for nothing beyond the download.

## The numbers

| Metric | Missing Digits | KEEPYBOO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 2 days |
| Size | 1 MB | 99 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [torankirite](https://appshunter.io/developer/1883564850) | [株式会社ビット](https://appshunter.io/developer/6813510089) |

## What reviewers say

### Missing Digits

[App page](https://appshunter.io/ios/app/missing-digits-math-puzzle/id6799607537)

**In-app purchases:** none


### KEEPYBOO

[App page](https://appshunter.io/ios/app/keepyboo-ghost-logic-puzzle/id6813510087)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Theme: Halloween | $0.99 | one-time |
| Theme: Toy Box | $0.99 | one-time |
| Theme: Comic Hero | $0.99 | one-time |
| Theme: Pixel Castle | $0.99 | one-time |
| Sound: Koto Strings | $0.99 | one-time |
| Sound: Water Drops | $0.99 | one-time |
| Sound: 80s Ghost | $0.99 | one-time |
| ULTIMATE Pack | $1.99 | one-time |
| EXTREME Pack | $3.99 | one-time |
| Remove Ads | $4.99 | one-time |


## Frequently asked questions

### Is Missing Digits free?

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

### Is KEEPYBOO free?

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

### Do Missing Digits or KEEPYBOO have ads?

KEEPYBOO shows ads; Missing Digits 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.*