# SimpleBook ver.2 vs rucuru(ルクル)

The clearest difference is ads: SimpleBook ver.2 at none against rucuru(ルクル)'s shown. rucuru(ルクル)'s advantage is update cadence (fortnightly vs every 37 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SimpleBook ver.2 ships an update every 37 months, rucuru(ルクル) fortnightly. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | SimpleBook ver.2 | rucuru(ルクル) |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 37 months | **Fortnightly** |
| Size | 2 MB | 30 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [SFIDAX inc.](https://appshunter.io/developer/959794282) | [keiju nakashima](https://appshunter.io/developer/1588661565) |

## What reviewers say

### SimpleBook ver.2

[App page](https://appshunter.io/ios/app/simplebook-ver2/id1254387244)

**Features:** macOS Compatibility

**In-app purchases:** none


### rucuru(ルクル)

[App page](https://appshunter.io/ios/app/rucuru/id1588661563)

**In-app purchases:** none


## Frequently asked questions

### Is SimpleBook ver.2 free?

SimpleBook ver.2 is free to download, with no in-app purchases.

### Is rucuru(ルクル) free?

rucuru(ルクル) is free to download, with no in-app purchases.

### Do SimpleBook ver.2 or rucuru(ルクル) have ads?

rucuru(ルクル) shows ads; SimpleBook ver.2 does not.

### Which is updated more often, SimpleBook ver.2 or rucuru(ルクル)?

SimpleBook ver.2 ships an update every 37 months, and rucuru(ルクル) fortnightly. Most recently, SimpleBook ver.2 was updated on October 13, 2026 and rucuru(ルクル) on October 3, 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.*