# Curio Library vs Book Tracker & Log

The clearest difference is in-app purchases: Curio Library at none against Book Tracker & Log's 2. Curio Library also leads on device support (3 vs 1) and iOS requirement (11.1 vs 17.6). Book Tracker & Log's advantage is update cadence (every 2 months vs every 21 months). On price and ads there is nothing between them.

Both are free to download. Book Tracker & Log sells 2 in-app purchases, starting at $5.99 per 7 days. Curio Library asks for nothing beyond the download.

Curio Library ships an update every 21 months, Book Tracker & Log every 2 months. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Curio Library | Book Tracker & Log |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/curio-library/id1356988731/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 9 MB | 12 MB |
| Requires iOS | **11.1** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [NTDE](https://appshunter.io/developer/1316864128) | [DOUNIA EL MELLOUKY](https://appshunter.io/developer/1871264044) |

## What reviewers say

### Curio Library

[App page](https://appshunter.io/ios/app/curio-library/id1356988731)

Organize and manage your personal book collection. Keep track of all your reading materials in one place, with a simple and intuitive interface. Discover new ways to catalog your library.

**Highlights:** Personal library management, Catalog all book types, Intuitive interface, Track reading materials

**Features:** macOS Compatibility

**In-app purchases:** none


### Book Tracker & Log

[App page](https://appshunter.io/ios/app/book-tracker-and-log/id6759507190)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $5.99 | per 7 days |
| Yearly Subscription | $14.99 | per year |


## Frequently asked questions

### Is Curio Library free?

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

### Is Book Tracker & Log free?

Book Tracker & Log is free to download, with in-app purchases available.

### Do Curio Library or Book Tracker & Log have ads?

Neither Curio Library nor Book Tracker & Log shows ads.

### Which is updated more often, Curio Library or Book Tracker & Log?

Curio Library ships an update every 21 months, and Book Tracker & Log every 2 months. Most recently, Curio Library was updated on October 2, 2026 and Book Tracker & Log on October 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.*