# Lucid Reader — Simple PDF reader for books

> Simple PDF reader for books (iPhone/iPad app by Satoshi Takezawa.)

- Source: https://appshunter.io/ios/app/lucid-reader/id6446276548 (this page in markdown: same URL + `.md`)
- Developer: [Satoshi Takezawa](https://appshunter.io/developer/1677095481)
- Category: Books, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 4 MB
- Languages: American English, Japanese
- Released: 2023-03-17
- Data updated: 2026-08-19
- User reviews in markdown: https://appshunter.io/ios/app/lucid-reader/id6446276548/reviews.md

## What is Lucid Reader?

Lucid Reader — A Streamlined PDF Viewer for Focused Reading

Lucid Reader gives you a clean, distraction-free way to read PDFs — whether they're standard documents or books you've scanned yourself. No clutter, no complexity. Just your PDF and you.

*** Key Features ***

• Two-Page Spread — Read like a real book, with an optional standalone cover page.
• Flexible Binding — Switch between right-to-left or left-to-right binding, perfect for Japanese-style books and manga.
• Optimized Display — Fine-tune the display area and zoom independently for the left and right pages to maximize space and trim away margins.
• Intuitive Page Navigation — Turn pages effortlessly with a tap or a swipe, with customizable tap zones.
• Page Lock — Keep your view exactly where you set it and prevent accidental shifts.
• Full-Screen Mode — Fully immerse yourself with a distraction-free view.
• Collections — Group multiple files together for tidy, organized reading.
• iCloud Storage — Offload files to iCloud to reclaim space on your device.

*** Effortless File Access ***

Open PDFs in seconds:
• Tap the + icon in the top-right corner of the file list, or
• Choose "Save to Lucid Reader" from the share menu in any other app.

*** Secret Mode — Enhanced Privacy (In-App Purchase) ***

• Create more collections
• Protect your sensitive files with advanced privacy tools:
• File Hiding — Swipe right on any file and tap Secret to hide it from the list.
• Restricted Access — Hidden files stay concealed until you unlock them with Face ID / Touch ID, keeping them private even if someone glances at your screen.
• App Switcher Privacy — Secret-mode PDFs are blurred when switching apps, so your private content stays hidden even on the multitasking screen.

Experience the perfect balance of simplicity and control. Lucid Reader is built for one thing — hassle-free PDF reading.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

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



## Version history (last 5 releases)

### 1.7 — 2026-08-12

• You can now free up device storage by offloading files to iCloud
• Secret-mode PDFs are now blurred in the app switcher to keep your content private

### 1.6.1 — 2026-08-06

Fixed a rare issue where the file list could appear empty under certain installation conditions.

### 1.6 — 2026-08-04

• Read PDFs as a two-page spread, with right/left binding and an optional standalone cover page.
• PDFs now open zoomed to fit the page height automatically.
• Added a Share button.
• Various UI improvements (settings screen, sort/filter menu button etc.).
• Note: previously saved zoom levels and view positions will be reset with this update.

### 1.5 — 2025-09-19

Liquid Glass icon, label improvements and bug fixes.

### 1.4.1 — 2025-01-30

Add Support Tool.

## Apps similar to Lucid Reader

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [読書管理：読書をもっと快適に](https://appshunter.io/ios/app/id6743803722) | — | Free | Books |
| [MangaVision - Image/PDF Viewer](https://appshunter.io/ios/app/mangavision-imagepdf-viewer/id6504904610) | — | Free | Books |
| [csBooks - ePub and PDF reader](https://appshunter.io/ios/app/csbooks-epub-and-pdf-reader/id6477337382) | — | Free | Books |
| [iReaderPDF](https://appshunter.io/ios/app/ireaderpdf/id6755795712) | 5.0 (1) | Free | Books |
| [page2flip App](https://appshunter.io/ios/app/page2flip-app/id1595673831) | — | Free | Books |
| [青の書架 - 高機能な青空文庫リーダー](https://appshunter.io/ios/app/id6754846395) | — | Free | Books |

## More apps by Satoshi Takezawa

- [GridFinder](https://appshunter.io/ios/app/gridfinder/id6787063767)

All apps by Satoshi Takezawa: https://appshunter.io/developer/1677095481

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-19.*