# BookDiary vs 栞灯

The clearest difference is in-app purchases: 栞灯 at none against BookDiary's 1. 栞灯 also leads on iOS requirement (15.0 vs 17.0). BookDiary's advantage is ads (none vs shown) and update cadence (every 2 weeks vs every 2 months). On price and device support there is nothing between them.

Both are free to download. BookDiary sells 1 one-off in-app purchase. 栞灯 asks for nothing beyond the download.

BookDiary ships an update every 2 weeks, 栞灯 every 2 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | BookDiary | 栞灯 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/bookdiary-reading-journal/id6765982985/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Size | 3 MB | 12 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [torankirite](https://appshunter.io/developer/1883564850) | [ココロAI合同会社](https://appshunter.io/developer/1818743242) |

## What reviewers say

### BookDiary

[App page](https://appshunter.io/ios/app/bookdiary-reading-journal/id6765982985)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $3.99 | one-time |


### 栞灯

[App page](https://appshunter.io/ios/app/id6799999846)

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

**In-app purchases:** none


## Frequently asked questions

### Is BookDiary free?

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

### Is 栞灯 free?

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

### Do BookDiary or 栞灯 have ads?

栞灯 shows ads; BookDiary does not.

### Which is updated more often, BookDiary or 栞灯?

BookDiary ships an update every 2 weeks, and 栞灯 every 2 months. Most recently, BookDiary was updated on October 24, 2026 and 栞灯 on October 24, 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.*