# eBookHub vs ISBN

The clearest difference is ads: eBookHub at none against ISBN's shown. eBookHub also leads on update cadence (every 2 months vs every 4 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.

eBookHub ships an update every 2 months, ISBN every 4 months. The most recent releases landed on October 17, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | eBookHub | ISBN |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 4 months |
| Size | 36 MB | 16 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HamaStar Technology Co., Ltd.](https://appshunter.io/developer/453199183) | [剑秋 肖](https://appshunter.io/developer/806037264) |

## What reviewers say

### eBookHub

[App page](https://appshunter.io/ios/app/ebookhub/id453199180)

**In-app purchases:** none


### ISBN

[App page](https://appshunter.io/ios/app/isbn/id6449743934)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is eBookHub free?

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

### Is ISBN free?

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

### Do eBookHub or ISBN have ads?

ISBN shows ads; eBookHub does not.

### Which is updated more often, eBookHub or ISBN?

eBookHub ships an update every 2 months, and ISBN every 4 months. Most recently, eBookHub was updated on October 17, 2026 and ISBN on October 27, 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.*