# RemNum 〜 数字を暗記するだけのアプリ vs Zax

The clearest difference is update cadence: Zax at every 3 days against RemNum 〜 数字を暗記するだけのアプリ's every 3 weeks. RemNum 〜 数字を暗記するだけのアプリ's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 17.0). On price, ads and in-app purchases 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, Zax every 3 days. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | RemNum 〜 数字を暗記するだけのアプリ | Zax |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/zax-word-arcade/id6762528306/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | — | Free |
| Size | 48 MB | 8 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [yoshitomo ishii](https://appshunter.io/developer/1495140436) | [Hamzah Hussain](https://appshunter.io/developer/1530009457) |

## 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


### Zax

[App page](https://appshunter.io/ios/app/zax-word-arcade/id6762528306)

This word game challenges players to create words from a letter rack, scoring based on the alphabetical distance between adjacent letters. Shorter words can achieve higher scores than longer ones by creating larger 'zigzags' on the A-Z chart. It offers daily challenges, a progression system through stages, and replayability.

**Highlights:** Plot letters to draw a path across A-Z, Score based on alphabetical distance, Five submits per round, Compare your score to the ceiling, Climb through five stages with power-ups, Daily shared rack challenges, Works fully offline

**Features:** macOS Compatibility, 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 Zax free?

Zax 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 Zax have ads?

Neither RemNum 〜 数字を暗記するだけのアプリ nor Zax shows ads.

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

RemNum 〜 数字を暗記するだけのアプリ ships an update every 3 weeks, and Zax every 3 days. Most recently, RemNum 〜 数字を暗記するだけのアプリ was updated on November 4, 2026 and Zax on October 31, 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.*