# アレなんだっけ？ vs Bookrest

The clearest difference is in-app purchases: アレなんだっけ？ at none against Bookrest's 2. Bookrest's advantage is ads (none vs shown) and iOS requirement (15.1 vs 18.6). On price, update cadence and device support there is nothing between them.

Both are free to download. Bookrest sells 2 in-app purchases, starting at $2.99 per month. アレなんだっけ？ asks for nothing beyond the download.

アレなんだっけ？ ships an update every 4 days, Bookrest every 3 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | アレなんだっけ？ | Bookrest |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 days | **Every 3 days** |
| Size | 6 MB | 78 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NANACHANLAB](https://appshunter.io/developer/1895008132) | [souma kaneko](https://appshunter.io/developer/1896695718) |

## What reviewers say

### アレなんだっけ？

[App page](https://appshunter.io/ios/app/id6763831679)

**In-app purchases:** none


### Bookrest

[App page](https://appshunter.io/ios/app/bookrest-visual-bookmarks/id6769874184)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bookrest Pro (Monthly) | $2.99 | per month |
| Bookrest Pro (Lifetime) | $9.99 | one-time |


## Frequently asked questions

### Is アレなんだっけ？ free?

アレなんだっけ？ is free to download, with no in-app purchases.

### Is Bookrest free?

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

### Do アレなんだっけ？ or Bookrest have ads?

アレなんだっけ？ shows ads; Bookrest does not.

### Which is updated more often, アレなんだっけ？ or Bookrest?

アレなんだっけ？ ships an update every 4 days, and Bookrest every 3 days. Most recently, アレなんだっけ？ was updated on October 25, 2026 and Bookrest on October 31, 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.*