# CatalogBooks vs iLibrary!

The clearest difference is in-app purchases: CatalogBooks at none against iLibrary!'s 1. iLibrary!'s advantage is update cadence (every 3 months vs every 13 months) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.

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

CatalogBooks ships an update every 13 months, iLibrary! every 3 months. The most recent releases landed on October 26, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | CatalogBooks | iLibrary! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/ilibrary/id1441247117/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 months** |
| Monetization | — | Free with in-app purchases |
| Size | 4 MB | 59 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Antonio Sollo](https://appshunter.io/developer/1252677323) | [Guido Fanfani](https://appshunter.io/developer/594361200) |

## What reviewers say

### CatalogBooks

[App page](https://appshunter.io/ios/app/catalogbooks/id1410236464)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 CatalogBooks free?

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

### Is iLibrary! free?

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

### Do CatalogBooks or iLibrary! have ads?

Neither CatalogBooks nor iLibrary! shows ads.

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

CatalogBooks ships an update every 13 months, and iLibrary! every 3 months. Most recently, CatalogBooks was updated on October 26, 2026 and iLibrary! on October 7, 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.*