# 毎日脳トレ！NUMBER vs Find the wrong kanji

The clearest difference is review sentiment: Find the wrong kanji at 100% against 毎日脳トレ！NUMBER's 0%. Find the wrong kanji also leads on update cadence (every 4 weeks vs every 2 months). 毎日脳トレ！NUMBER's advantage is in-app purchases (none vs 1) and iOS requirement (11.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. Find the wrong kanji sells 1 one-off in-app purchase. 毎日脳トレ！NUMBER asks for nothing beyond the download.

毎日脳トレ！NUMBER ships an update every 2 months, Find the wrong kanji every 4 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | 毎日脳トレ！NUMBER | Find the wrong kanji |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 96 MB | 57 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ZERONE](https://appshunter.io/developer/1708775781) | [ryo fujise](https://appshunter.io/developer/1580661605) |

## What reviewers say

### 毎日脳トレ！NUMBER

[App page](https://appshunter.io/ios/app/number/id1467748381)

Test your brain age with a simple puzzle game. Find the number closest to the given subject by tapping. The more you play, the more your brain is activated.

**Highlights:** Brain age check, Simple puzzle gameplay, Tap-based interaction, Brain activation, Number matching

**Features:** macOS Compatibility

**In-app purchases:** none


### Find the wrong kanji

[App page](https://appshunter.io/ios/app/find-the-wrong-kanji/id6444767788)

This brain training game challenges you to find the subtly different kanji character among a group. It's a fun "spot the difference" style puzzle suitable for all ages, offering various game modes and difficulty levels to test your focus and visual acuity.

**Highlights:** Spot the difference kanji puzzles, Multiple game modes (Quick, Continuous, Endless), 5 difficulty levels, Special challenges with rotated/colored text, Global leaderboards, Brain training and focus improvement

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove in-app advertisements. | $1.99 | one-time |


## Frequently asked questions

### Is 毎日脳トレ！NUMBER free?

毎日脳トレ！NUMBER is free to download, with no in-app purchases.

### Is Find the wrong kanji free?

Find the wrong kanji is free to download, with in-app purchases available.

### Do 毎日脳トレ！NUMBER or Find the wrong kanji have ads?

Both 毎日脳トレ！NUMBER and Find the wrong kanji show ads.

### Which is updated more often, 毎日脳トレ！NUMBER or Find the wrong kanji?

毎日脳トレ！NUMBER ships an update every 2 months, and Find the wrong kanji every 4 weeks. Most recently, 毎日脳トレ！NUMBER was updated on November 3, 2026 and Find the wrong kanji on November 3, 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.*