# PrepNote vs ソナエノート

The clearest difference is in-app purchases: ソナエノート at none against PrepNote's 1. ソナエノート also leads on update cadence (every 9 days 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. ソナエノート asks for nothing beyond the download.

PrepNote ships an update every 7 months, ソナエノート every 9 days. The most recent releases landed on September 14, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | PrepNote | ソナエノート |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 7 months | **Every 9 days** |
| Size | 7 MB | 24 MB |
| Requires iOS | **17.5** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Eri Tominaga](https://appshunter.io/developer/1528527513) | [Matsusaka E.D.P Center](https://appshunter.io/developer/1553737486) |

## 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 |


### ソナエノート

[App page](https://appshunter.io/ios/app/id6760004374)

**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 ソナエノート free?

ソナエノート is free to download, with no in-app purchases.

### Do PrepNote or ソナエノート have ads?

Both PrepNote and ソナエノート show ads.

### Which is updated more often, PrepNote or ソナエノート?

PrepNote ships an update every 7 months, and ソナエノート every 9 days. Most recently, PrepNote was updated on September 14, 2026 and ソナエノート on September 23, 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.*