# BookGrass vs Lu Reader

The clearest difference is ads: BookGrass at none against Lu Reader's shown. BookGrass also leads on update cadence (daily vs weekly). Lu Reader's advantage is iOS requirement (15.5 vs 17.6). On price, in-app purchases and device support there is nothing between them.

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

BookGrass ships an update daily, Lu Reader weekly. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | BookGrass | Lu Reader |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Weekly |
| Monetization | — | Ad-supported |
| Size | 9 MB | 95 MB |
| Requires iOS | 17.6 | **15.5** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jaeyoung Heo](https://appshunter.io/developer/1833670805) | [sanghun jeong](https://appshunter.io/developer/6790818156) |

## What reviewers say

### BookGrass

[App page](https://appshunter.io/ios/app/bookgrass/id6757300121)

**In-app purchases:** none


### Lu Reader

[App page](https://appshunter.io/ios/app/lu-reader-epub-and-ebook-reader/id6790819342)

This application offers a streamlined reading experience for various document and e-book formats, including EPUB and PDF. It features customizable reading settings, text-to-speech functionality, and smart library management. Users can back up their data to Google Drive.

**Highlights:** Supports EPUB, PDF, TXT, DOC, FB2, HWP, ZIP, CBZ, 11 customizable color themes, Adjustable font size, line spacing, and margins, In-app brightness control, Text-to-speech with adjustable speed, Automatic table of contents generation, Smart library with sorting and search

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

**In-app purchases:** none


## Frequently asked questions

### Is BookGrass free?

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

### Is Lu Reader free?

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

### Do BookGrass or Lu Reader have ads?

Lu Reader shows ads; BookGrass does not.

### Which is updated more often, BookGrass or Lu Reader?

BookGrass ships an update daily, and Lu Reader weekly. Most recently, BookGrass was updated on October 28, 2026 and Lu Reader on October 25, 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.*