# FlashNumbers：Train your memory vs 見た数字を答えるだけの暇つぶしゲーム

The clearest difference is update cadence: 見た数字を答えるだけの暇つぶしゲーム at every 3 days against FlashNumbers：Train your memory's every 17 months. FlashNumbers：Train your memory's advantage is iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

FlashNumbers：Train your memory ships an update every 17 months, 見た数字を答えるだけの暇つぶしゲーム every 3 days. The most recent releases landed on November 2, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | FlashNumbers：Train your memory | 見た数字を答えるだけの暇つぶしゲーム |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/flashnumberstrain-your-memory/id1165941421/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 17 months | **Every 3 days** |
| Monetization | Ad-supported | — |
| Size | 52 MB | 21 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jun Koizumi](https://appshunter.io/developer/1143108654) | [narito hojo](https://appshunter.io/developer/1625313570) |

## What reviewers say

### FlashNumbers：Train your memory

[App page](https://appshunter.io/ios/app/flashnumberstrain-your-memory/id1165941421)

This game challenges your visual acuity and memory by having you memorize and input numbers shown briefly on screen. Progress through increasing difficulty levels and track your daily improvements with graphs. Share your high scores on social media.

**Highlights:** Memorize and input numbers, Dynamic visual acuity training, Multiple difficulty levels, Daily improvement graphs, Tutorial for beginners, Share results to SNS

**Features:** macOS Compatibility

**In-app purchases:** none


### 見た数字を答えるだけの暇つぶしゲーム

[App page](https://appshunter.io/ios/app/id6745416964)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is FlashNumbers：Train your memory free?

FlashNumbers：Train your memory is free to download, with no in-app purchases.

### Is 見た数字を答えるだけの暇つぶしゲーム free?

見た数字を答えるだけの暇つぶしゲーム is free to download, with no in-app purchases.

### Do FlashNumbers：Train your memory or 見た数字を答えるだけの暇つぶしゲーム have ads?

Both FlashNumbers：Train your memory and 見た数字を答えるだけの暇つぶしゲーム show ads.

### Which is updated more often, FlashNumbers：Train your memory or 見た数字を答えるだけの暇つぶしゲーム?

FlashNumbers：Train your memory ships an update every 17 months, and 見た数字を答えるだけの暇つぶしゲーム every 3 days. Most recently, FlashNumbers：Train your memory was updated on November 2, 2026 and 見た数字を答えるだけの暇つぶしゲーム on October 28, 2026.

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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.*