# Curio Library vs BooksRUs

The clearest difference is update cadence: BooksRUs at every 5 months against Curio Library's every 21 months. Curio Library's advantage is iOS requirement (11.1 vs 26.0). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Curio Library against 5.0 for BooksRUs. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Curio Library ships an update every 21 months, BooksRUs every 5 months. The most recent releases landed on October 24, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Curio Library | BooksRUs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/curio-library/id1356988731/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/booksrus/id6736962619/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 5 months** |
| Monetization | Free | Free |
| Size | 9 MB | 20 MB |
| Requires iOS | **11.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [NTDE](https://appshunter.io/developer/1316864128) | [John Grauel](https://appshunter.io/developer/734191840) |

## 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


### BooksRUs

[App page](https://appshunter.io/ios/app/booksrus/id6736962619)

Manage your personal book collection with detailed records. Add author, publisher, ISBN, genre, and ratings. Include book photos and sync data across all your Apple devices.

**Highlights:** Create detailed book records, Attach author, publisher, ISBN, Include storage location and genre, Add book ratings, Include book photos, Sync data across Apple devices

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

**In-app purchases:** none


## Frequently asked questions

### Is Curio Library free?

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

### Is BooksRUs free?

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

### Which has better reviews, Curio Library or BooksRUs?

Curio Library and BooksRUs are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Curio Library or BooksRUs have ads?

Neither Curio Library nor BooksRUs shows ads.

### Which is updated more often, Curio Library or BooksRUs?

Curio Library ships an update every 21 months, and BooksRUs every 5 months. Most recently, Curio Library was updated on October 24, 2026 and BooksRUs on October 21, 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.*