# RemNum 〜 数字を暗記するだけのアプリ vs Akoustik

The clearest difference is ads: RemNum 〜 数字を暗記するだけのアプリ at none against Akoustik's shown. RemNum 〜 数字を暗記するだけのアプリ also leads on iOS requirement (12.0 vs 15.0). Akoustik's advantage is update cadence (every 4 days vs every 3 weeks). On price, 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.

RemNum 〜 数字を暗記するだけのアプリ ships an update every 3 weeks, Akoustik every 4 days. The most recent releases landed on October 21, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | RemNum 〜 数字を暗記するだけのアプリ | Akoustik |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/akoustik-audio-memory-game/id6799735594/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 48 MB | 44 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [yoshitomo ishii](https://appshunter.io/developer/1495140436) | [Barnabas Jonas Jonathas](https://appshunter.io/developer/6799735596) |

## What reviewers say

### 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


### Akoustik

[App page](https://appshunter.io/ios/app/akoustik-audio-memory-game/id6799735594)

Test your auditory memory with this engaging game. Listen to sequences of sounds and tap tiles in the correct order to progress. Features multiple game modes, including daily challenges and head-to-head duels.

**Highlights:** Listen to growing sound sequences, Tap tiles in the correct order, Classic memory challenges, Daily global challenges, Player-vs-player challenges, Pitch matching mode, Sound creator for custom tunes

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

**In-app purchases:** none


## Frequently asked questions

### 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.

### Is Akoustik free?

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

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

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

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

RemNum 〜 数字を暗記するだけのアプリ ships an update every 3 weeks, and Akoustik every 4 days. Most recently, RemNum 〜 数字を暗記するだけのアプリ was updated on October 21, 2026 and Akoustik on October 12, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*