# LibraryThing vs SageCat

The clearest difference is update cadence: LibraryThing at every 4 weeks against SageCat's every 8 months. LibraryThing also leads on review sentiment (47% vs 33%) and iOS requirement (11.0 vs 15.6). On price, ads, in-app purchases and monetization model there is nothing between them.

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

LibraryThing ships an update every 4 weeks, SageCat every 8 months. The most recent releases landed on October 12, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | LibraryThing | SageCat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (278 ratings)](https://appshunter.io/ios/app/librarything/id948824489/reviews)** | — |
| Number of ratings | **278** | — |
| Positive reviews | **47.2% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 8 months |
| Monetization | Free | Free |
| Size | 9 MB | 9 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [LibraryThing.com](https://appshunter.io/developer/397718884) | [Kenneth Cox](https://appshunter.io/developer/1400443993) |

## 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- 🤖 Outdated and dated UI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


### SageCat

[App page](https://appshunter.io/ios/app/sagecat/id1492950794)

Access and manage your library account for the Sage Library System. Search for materials, place holds, and review your checked-out items. Requires a library card from a participating SageCat member library.

**Highlights:** Search library catalog, Place holds on materials, Review checked-out items, Renew borrowed items, Access materials from 70+ libraries

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

**In-app purchases:** none


## Frequently asked questions

### Is LibraryThing free?

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

### Is SageCat free?

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

### Do LibraryThing or SageCat have ads?

Neither LibraryThing nor SageCat shows ads.

### Which is updated more often, LibraryThing or SageCat?

LibraryThing ships an update every 4 weeks, and SageCat every 8 months. Most recently, LibraryThing was updated on October 12, 2026 and SageCat on October 6, 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.*