# 瞬間記憶 vs RemNum 〜 数字を暗記するだけのアプリ

The clearest difference is ads: RemNum 〜 数字を暗記するだけのアプリ at none against 瞬間記憶's shown. RemNum 〜 数字を暗記するだけのアプリ also leads on update cadence (every 3 weeks vs every 2 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

瞬間記憶 ships an update every 2 months, RemNum 〜 数字を暗記するだけのアプリ every 3 weeks. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | 瞬間記憶 | RemNum 〜 数字を暗記するだけのアプリ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Ad-supported | — |
| Size | 101 MB | 48 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ZERONE](https://appshunter.io/developer/1708775781) | [yoshitomo ishii](https://appshunter.io/developer/1495140436) |

## What reviewers say

### 瞬間記憶

[App page](https://appshunter.io/ios/app/id1473696933)

A simple puzzle game designed to improve your memory and cognitive skills. Test your brain age by memorizing number patterns and tapping the correct sequence. Play regularly to activate your brain and see how sharp you are.

**Highlights:** Memory game with numbers, Brain age diagnosis, Simple tap controls, Brain activation through play, Puzzle gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


### RemNum 〜 数字を暗記するだけのアプリ

[App page](https://appshunter.io/ios/app/remnum/id6504561429)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 瞬間記憶 free?

瞬間記憶 is free to download, with no in-app purchases.

### Is RemNum 〜 数字を暗記するだけのアプリ free?

RemNum 〜 数字を暗記するだけのアプリ is free to download, with no in-app purchases.

### Do 瞬間記憶 or RemNum 〜 数字を暗記するだけのアプリ have ads?

瞬間記憶 shows ads; RemNum 〜 数字を暗記するだけのアプリ does not.

### Which is updated more often, 瞬間記憶 or RemNum 〜 数字を暗記するだけのアプリ?

瞬間記憶 ships an update every 2 months, and RemNum 〜 数字を暗記するだけのアプリ every 3 weeks. Most recently, 瞬間記憶 was updated on October 8, 2026 and RemNum 〜 数字を暗記するだけのアプリ on October 4, 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.*