# Lucid Reader vs Inspan Book Reader

The clearest difference is in-app purchases: Inspan Book Reader at none against Lucid Reader's 1. Inspan Book Reader also leads on update cadence (every 2 days vs every 3 weeks) and device support (4 vs 2). On price and ads there is nothing between them.

Both are free to download. Lucid Reader sells 1 one-off in-app purchase. Inspan Book Reader asks for nothing beyond the download.

Lucid Reader ships an update every 3 weeks, Inspan Book Reader every 2 days. The most recent releases landed on October 12, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Lucid Reader | Inspan Book Reader |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Size | 7 MB | 35 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Satoshi Takezawa](https://appshunter.io/developer/1677095481) | [Nikolay Vorobyev](https://appshunter.io/developer/6803159557) |

## What reviewers say

### 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 |


### Inspan Book Reader

[App page](https://appshunter.io/ios/app/inspan-book-reader/id6814143093)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Lucid Reader free?

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

### Is Inspan Book Reader free?

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

### Do Lucid Reader or Inspan Book Reader have ads?

Neither Lucid Reader nor Inspan Book Reader shows ads.

### Which is updated more often, Lucid Reader or Inspan Book Reader?

Lucid Reader ships an update every 3 weeks, and Inspan Book Reader every 2 days. Most recently, Lucid Reader was updated on October 12, 2026 and Inspan Book Reader on October 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*