# LuminRead vs CustomBooks

The clearest difference is update cadence: CustomBooks at every 2 weeks against LuminRead's every 4 months. LuminRead's advantage is device support (3 vs 1) and iOS requirement (15.2 vs 17.0). On price, 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.

LuminRead ships an update every 4 months, CustomBooks every 2 weeks. The most recent releases landed on October 5, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | LuminRead | CustomBooks |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 weeks** |
| Size | 69 MB | 3 MB |
| Requires iOS | **15.2** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [FUTO K.K.](https://appshunter.io/developer/1766492534) | [永隆 郝](https://appshunter.io/developer/6781715723) |

## What reviewers say

### LuminRead

[App page](https://appshunter.io/ios/app/luminread/id6751025549)

**Features:** macOS Compatibility

**In-app purchases:** none


### CustomBooks

[App page](https://appshunter.io/ios/app/custombooks/id6781718998)

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

**In-app purchases:** none


## Frequently asked questions

### Is LuminRead free?

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

### Is CustomBooks free?

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

### Do LuminRead or CustomBooks have ads?

Neither LuminRead nor CustomBooks shows ads.

### Which is updated more often, LuminRead or CustomBooks?

LuminRead ships an update every 4 months, and CustomBooks every 2 weeks. Most recently, LuminRead was updated on October 5, 2026 and CustomBooks on October 1, 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.*