# ReadGem vs ClickBook

The clearest difference is iOS requirement: ClickBook at 15.1 against ReadGem's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 4 days. Both last shipped on October 8, 2026.

## The numbers

| Metric | ReadGem | ClickBook |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 days | Every 4 days |
| Size | 27 MB | 1.8 GB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [NEXTAOI, Inc](https://appshunter.io/developer/1748938499) | [Mohamad Mohamad](https://appshunter.io/developer/6796281612) |

## What reviewers say

### ReadGem

[App page](https://appshunter.io/ios/app/readgem-read-learn-languages/id6770457167)

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

**In-app purchases:** none


### ClickBook

[App page](https://appshunter.io/ios/app/clickbook-offline-ai-reader/id6796281610)

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

**In-app purchases:** none


## Frequently asked questions

### Is ReadGem free?

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

### Is ClickBook free?

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

### Do ReadGem or ClickBook have ads?

Neither ReadGem nor ClickBook shows ads.

### Which is updated more often, ReadGem or ClickBook?

ReadGem ships an update every 4 days, and ClickBook every 4 days. Most recently, ReadGem was updated on October 8, 2026 and ClickBook on October 8, 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.*