# Book Diary vs Rera

The clearest difference is in-app purchases: Rera at none against Book Diary's 1. Book Diary's advantage is update cadence (every 2 days vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Book Diary sells 1 in-app purchase, starting at $3.99 per month. Rera asks for nothing beyond the download.

Book Diary ships an update every 2 days, Rera every 5 months. The most recent releases landed on October 31, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Book Diary | Rera |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 5 months |
| Size | 2 MB | 9 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [VADZIM TSITKO](https://appshunter.io/developer/1713712145) | [Daisaku Seto](https://appshunter.io/developer/1889853807) |

## What reviewers say

### Book Diary

[App page](https://appshunter.io/ios/app/book-diary/id6757989246)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $3.99 | per month |


### Rera

[App page](https://appshunter.io/ios/app/rera-reading-journal/id6775810849)

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

**In-app purchases:** none


## Frequently asked questions

### Is Book Diary free?

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

### Is Rera free?

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

### Do Book Diary or Rera have ads?

Neither Book Diary nor Rera shows ads.

### Which is updated more often, Book Diary or Rera?

Book Diary ships an update every 2 days, and Rera every 5 months. Most recently, Book Diary was updated on October 31, 2026 and Rera on November 10, 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.*