# LibraryThing vs iLibrary!

The clearest difference is review sentiment: iLibrary! at 100% against LibraryThing's 48%. iLibrary! also leads on rating (4.0 vs 3.5). LibraryThing's advantage is in-app purchases (none vs 1) and ratings volume (278 vs 1). On price, ads and device support there is nothing between them.

Both are free to download. iLibrary! sells 1 one-off in-app purchase. LibraryThing asks for nothing beyond the download.

iLibrary! holds the better App Store score, 4.0 against 3.5. That said, the two scores are not equally well evidenced: LibraryThing has 278 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 48% of LibraryThing's written reviews are positive against 100% of iLibrary!'s.

LibraryThing ships an update every 4 weeks, iLibrary! every 3 months. The most recent releases landed on September 29, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | LibraryThing | iLibrary! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (278 ratings)](https://appshunter.io/ios/app/librarything/id948824489/reviews) | **[4.0 (1 ratings)](https://appshunter.io/ios/app/ilibrary/id1441247117/reviews)** |
| Number of ratings | **278** | 1 |
| Positive reviews | 48.2% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 9 MB | 59 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [LibraryThing.com](https://appshunter.io/developer/397718884) | [Guido Fanfani](https://appshunter.io/developer/594361200) |

## What reviewers say

### LibraryThing

[App page](https://appshunter.io/ios/app/librarything/id948824489)

Catalog your personal book, DVD, and CD collections. Easily add items by searching or scanning barcodes. Enhance your catalog with high-resolution cover photos and browse your collection visually.

**Highlights:** Catalog books, DVDs, and CDs, Search for media items, Scan ISBN barcodes, Add high-resolution cover photos, Browse collection by cover type

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Quick barcode scanning
- 👍 Useful for cataloging library
- 🚀 Fast book addition

**What reviewers complain about**

- 🐛 Glitches and crashes
- 🔍 Limited search and editing capabilities
- 🤖 Outdated and dated UI

**Reported bugs**

- Barcode scanner not working
- Books disappearing from catalog
- Editing and saving issues

**Requested features**

- Ability to create custom collections
- Offline access to library
- Integration with other book apps
- Lending/loan tracking feature


### iLibrary!

[App page](https://appshunter.io/ios/app/ilibrary/id1441247117)

Easily catalog your personal book collection by scanning ISBN barcodes or searching by title. Access detailed book information and manage your library on the go. Features a unique web version for extended access.

**Highlights:** Personal library database, Barcode (ISBN) scanning, Search Google Books by name, Web version available, Book information retrieval

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iLibrary! Pro | $2.99 | one-time |


## Frequently asked questions

### Is LibraryThing free?

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

### Is iLibrary! free?

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

### Which has better reviews, LibraryThing or iLibrary!?

iLibrary! is rated higher. LibraryThing averages 3.5 out of 5 from 278 ratings, while iLibrary! averages 4.0 from 1 ratings.

### Do LibraryThing or iLibrary! have ads?

Neither LibraryThing nor iLibrary! shows ads.

### Which is updated more often, LibraryThing or iLibrary!?

LibraryThing ships an update every 4 weeks, and iLibrary! every 3 months. Most recently, LibraryThing was updated on September 29, 2026 and iLibrary! on September 20, 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.*