# 20の質問 vs Digit Span Backwords Game

The clearest difference is in-app purchases: Digit Span Backwords Game at none against 20の質問's 1. Digit Span Backwords Game also leads on iOS requirement (13.0 vs 15.1). On price, ads and device support there is nothing between them.

Both are free to download. 20の質問 sells 1 in-app purchase, starting at $1.99 per month. Digit Span Backwords Game asks for nothing beyond the download.

## The numbers

| Metric | 20の質問 | Digit Span Backwords Game |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | — |
| Size | 47 MB | 65 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Monello LLC](https://appshunter.io/developer/1800115800) | [MINERVA K.K.](https://appshunter.io/developer/1597905460) |

## What reviewers say

### 20の質問

[App page](https://appshunter.io/ios/app/20/id6742810917)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 無制限パス | $1.99 | per month |


### Digit Span Backwords Game

[App page](https://appshunter.io/ios/app/digit-span-backwords-game/id6779868032)

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

**In-app purchases:** none


## Frequently asked questions

### Is 20の質問 free?

20の質問 is free to download, with in-app purchases available.

### Is Digit Span Backwords Game free?

Digit Span Backwords Game is free to download, with no in-app purchases.

### Do 20の質問 or Digit Span Backwords Game have ads?

Both 20の質問 and Digit Span Backwords Game 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.*