# Flash Numbers! vs Kioku?：Number Memory

The clearest difference is in-app purchases: Flash Numbers! at none against Kioku?：Number Memory's 1. Flash Numbers! also leads on device support (3 vs 1) and iOS requirement (6.0 vs 17.0). On price and ads there is nothing between them.

Both are free to download. Kioku?：Number Memory sells 1 one-off in-app purchase. Flash Numbers! asks for nothing beyond the download.

## The numbers

| Metric | Flash Numbers! | Kioku?：Number Memory |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2 ratings)](https://appshunter.io/ios/app/flash-numbers/id1137836059/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 days |
| Monetization | Free | — |
| Size | 24 MB | 7 MB |
| Requires iOS | **6.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [YUTA MIYOSHI](https://appshunter.io/developer/878543402) | [Yuichi Hiruta](https://appshunter.io/developer/912365793) |

## What reviewers say

### Flash Numbers!

[App page](https://appshunter.io/ios/app/flash-numbers/id1137836059)

Test your memory with this quick-reaction game where numbers flash on screen for a single second. Your goal is to recall and enter the displayed number accurately. It's a simple yet challenging way to sharpen your cognitive skills.

**Highlights:** Number recall challenge, One-second display, Memory testing, Quick reaction gameplay, Simple interface

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

**In-app purchases:** none


### Kioku?：Number Memory

[App page](https://appshunter.io/ios/app/kiokunumber-memory/id6782825314)

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is Flash Numbers! free?

Flash Numbers! is free to download, with no in-app purchases.

### Is Kioku?：Number Memory free?

Kioku?：Number Memory is free to download, with in-app purchases available.

### Do Flash Numbers! or Kioku?：Number Memory have ads?

Neither Flash Numbers! nor Kioku?：Number Memory shows 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.*