# MemoryNumber vs 新AI脳トレ

The clearest difference is in-app purchases: 新AI脳トレ at none against MemoryNumber's 1. 新AI脳トレ also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 2 months). On price and device support there is nothing between them.

Both are free to download. MemoryNumber sells 1 one-off in-app purchase. 新AI脳トレ asks for nothing beyond the download.

MemoryNumber ships an update every 2 months, 新AI脳トレ every 3 weeks. The most recent releases landed on September 19, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | MemoryNumber | 新AI脳トレ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/memorynumber-braintraining/id6444015375/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 30 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ryo muranaka](https://appshunter.io/developer/1606480078) | [Yusuke Sano](https://appshunter.io/developer/1846508462) |

## What reviewers say

### MemoryNumber

[App page](https://appshunter.io/ios/app/memorynumber-braintraining/id6444015375)

This app helps train your memory and cognitive skills through a number-based puzzle. Memorize numbers and their positions to solve challenges, with adjustable difficulty levels.

**Highlights:** Number memorization challenges, Position tracking, Adjustable difficulty levels, Cognitive skill training, Puzzle solving

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $6.99 | one-time |


### 新AI脳トレ

[App page](https://appshunter.io/ios/app/ai/id6759478870)

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

**In-app purchases:** none


## Frequently asked questions

### Is MemoryNumber free?

MemoryNumber is free to download, with in-app purchases available.

### Is 新AI脳トレ free?

新AI脳トレ is free to download, with no in-app purchases.

### Do MemoryNumber or 新AI脳トレ have ads?

MemoryNumber shows ads; 新AI脳トレ does not.

### Which is updated more often, MemoryNumber or 新AI脳トレ?

MemoryNumber ships an update every 2 months, and 新AI脳トレ every 3 weeks. Most recently, MemoryNumber was updated on September 19, 2026 and 新AI脳トレ on September 29, 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.*