# 忘却曲線スケジュール vs 記憶KEEPER

The clearest difference is in-app purchases: 記憶KEEPER at none against 忘却曲線スケジュール's 4. On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 忘却曲線スケジュール sells 4 in-app purchases, starting at $1.99 per month. 記憶KEEPER asks for nothing beyond the download.

## The numbers

| Metric | 忘却曲線スケジュール | 記憶KEEPER |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 3 days |
| Size | 12 MB | 4 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [PIXCLOWN CO., LTD.](https://appshunter.io/developer/1825514980) | [nao watanabe](https://appshunter.io/developer/1896686911) |

## What reviewers say

### 忘却曲線スケジュール

[App page](https://appshunter.io/ios/app/id6751126403)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Personal 月額プラン | $1.99 | per month |
| Pro 月額プラン | $5.99 | per month |
| Personal 年額プラン | $19.99 | per year |
| Pro 年額プラン | $59.99 | per year |


### 記憶KEEPER

[App page](https://appshunter.io/ios/app/keeper/id6769772312)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 忘却曲線スケジュール free?

忘却曲線スケジュール is free to download, with in-app purchases available.

### Is 記憶KEEPER free?

記憶KEEPER is free to download, with no in-app purchases.

### Do 忘却曲線スケジュール or 記憶KEEPER have ads?

Neither 忘却曲線スケジュール nor 記憶KEEPER shows ads.

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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.*