# Lectio PDF Reader & Bookshelf vs Lucid Reader

The clearest difference is in-app purchases: Lectio PDF Reader & Bookshelf at none against Lucid Reader's 1. Lucid Reader's advantage is iOS requirement (17.0 vs 27.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Lucid Reader sells 1 one-off in-app purchase. Lectio PDF Reader & Bookshelf asks for nothing beyond the download.

Lectio PDF Reader & Bookshelf ships an update every 6 weeks, Lucid Reader every 3 weeks. Both last shipped on October 12, 2026.

## The numbers

| Metric | Lectio PDF Reader & Bookshelf | Lucid Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Size | 31 MB | 7 MB |
| Requires iOS | 27.0 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [caps-rock](https://appshunter.io/developer/307492617) | [Satoshi Takezawa](https://appshunter.io/developer/1677095481) |

## What reviewers say

### Lectio PDF Reader & Bookshelf

[App page](https://appshunter.io/ios/app/lectio-pdf-reader-and-bookshelf/id1593029619)

**Features:** Vision Pro support

**In-app purchases:** none


### Lucid Reader

[App page](https://appshunter.io/ios/app/lucid-reader/id6446276548)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Mode | $0.99 | one-time |


## Frequently asked questions

### Is Lectio PDF Reader & Bookshelf free?

Lectio PDF Reader & Bookshelf is free to download, with no in-app purchases.

### Is Lucid Reader free?

Lucid Reader is free to download, with in-app purchases available.

### Do Lectio PDF Reader & Bookshelf or Lucid Reader have ads?

Neither Lectio PDF Reader & Bookshelf nor Lucid Reader shows ads.

### Which is updated more often, Lectio PDF Reader & Bookshelf or Lucid Reader?

Lectio PDF Reader & Bookshelf ships an update every 6 weeks, and Lucid Reader every 3 weeks. Most recently, Lectio PDF Reader & Bookshelf was updated on October 12, 2026 and Lucid Reader on October 12, 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.*