# BookShelfGPT vs OnlyBooks

The clearest difference is ads: OnlyBooks at none against BookShelfGPT's shown. BookShelfGPT's advantage is update cadence (every 9 days vs every 5 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

BookShelfGPT ships an update every 9 days, OnlyBooks every 5 months. The most recent releases landed on October 25, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | BookShelfGPT | OnlyBooks |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Every 5 months |
| Size | 17 MB | 51 MB |
| Requires iOS | 17.4 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Daniel Cole](https://appshunter.io/developer/1758531959) | [Devin Smith](https://appshunter.io/developer/1895330227) |

## What reviewers say

### BookShelfGPT

[App page](https://appshunter.io/ios/app/bookshelfgpt/id6560117972)

**In-app purchases:** none


### OnlyBooks

[App page](https://appshunter.io/ios/app/onlybooks/id6763473613)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BookShelfGPT free?

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

### Is OnlyBooks free?

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

### Do BookShelfGPT or OnlyBooks have ads?

BookShelfGPT shows ads; OnlyBooks does not.

### Which is updated more often, BookShelfGPT or OnlyBooks?

BookShelfGPT ships an update every 9 days, and OnlyBooks every 5 months. Most recently, BookShelfGPT was updated on October 25, 2026 and OnlyBooks 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.*