# PrepNote vs そなえ~災害備蓄管理アプリ~

The clearest difference is in-app purchases: そなえ~災害備蓄管理アプリ~ at none against PrepNote's 1. そなえ~災害備蓄管理アプリ~ also leads on update cadence (every 3 weeks vs every 7 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PrepNote sells 1 one-off in-app purchase. そなえ~災害備蓄管理アプリ~ asks for nothing beyond the download.

PrepNote ships an update every 7 months, そなえ~災害備蓄管理アプリ~ every 3 weeks. The most recent releases landed on September 14, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | PrepNote | そなえ~災害備蓄管理アプリ~ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 7 months | **Every 3 weeks** |
| Size | 7 MB | 6 MB |
| Requires iOS | **17.5** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Eri Tominaga](https://appshunter.io/developer/1528527513) | [Kai Inoue](https://appshunter.io/developer/1870824246) |

## What reviewers say

### PrepNote

[App page](https://appshunter.io/ios/app/prepnote/id6648762613)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Features | $1.99 | one-time |


### そなえ~災害備蓄管理アプリ~

[App page](https://appshunter.io/ios/app/id6804001418)

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

**In-app purchases:** none


## Frequently asked questions

### Is PrepNote free?

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

### Is そなえ~災害備蓄管理アプリ~ free?

そなえ~災害備蓄管理アプリ~ is free to download, with no in-app purchases.

### Do PrepNote or そなえ~災害備蓄管理アプリ~ have ads?

Both PrepNote and そなえ~災害備蓄管理アプリ~ show ads.

### Which is updated more often, PrepNote or そなえ~災害備蓄管理アプリ~?

PrepNote ships an update every 7 months, and そなえ~災害備蓄管理アプリ~ every 3 weeks. Most recently, PrepNote was updated on September 14, 2026 and そなえ~災害備蓄管理アプリ~ on September 28, 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.*