# 新AI脳トレ vs 防災ストック

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

Both are free to download. 防災ストック sells 1 one-off in-app purchase. 新AI脳トレ asks for nothing beyond the download.

新AI脳トレ ships an update every 3 weeks, 防災ストック every 3 months. Both last shipped on October 15, 2026.

## The numbers

| Metric | 新AI脳トレ | 防災ストック |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Size | 30 MB | 22 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Yusuke Sano](https://appshunter.io/developer/1846508462) | [RYOSUKE HIRAMATSU](https://appshunter.io/developer/616750780) |

## What reviewers say

### 新AI脳トレ

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

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

**In-app purchases:** none


### 防災ストック

[App page](https://appshunter.io/ios/app/id6785332349)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hidden Ads | $2.99 | one-time |


## Frequently asked questions

### Is 新AI脳トレ free?

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

### Is 防災ストック free?

防災ストック is free to download, with in-app purchases available.

### Do 新AI脳トレ or 防災ストック have ads?

防災ストック shows ads; 新AI脳トレ does not.

### Which is updated more often, 新AI脳トレ or 防災ストック?

新AI脳トレ ships an update every 3 weeks, and 防災ストック every 3 months. Most recently, 新AI脳トレ was updated on October 15, 2026 and 防災ストック on October 15, 2026.

---

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