Comparison

Lucid Reader vs FolioSpace Reader

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Lucid Reader

Features
Read full description

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. • End-to-End Encryption — Encrypt secret files with a password directly on your device. Your files remain unreadable without your password, even if your iCloud storage is accessed. Experience the perfect balance of simplicity and control. Lucid Reader is built for one thing — hassle-free PDF reading.

About

FolioSpace Reader

This personal reading client allows you to browse, organize, and read your digital library. Enjoy comfortable reading layouts for books and comics, with optimized performance for large collections on iPad.

Highlights
  • Connect to FolioSpace Library server
  • Browse and organize remote library
  • Read EPUB, PDF, comics, webtoons
  • Comfortable reading layouts
  • Optimized for large libraries
  • Local caching for comics
Features
Read full description

FolioSpace Reader brings your personal EPUB books, PDFs, comics, and webtoons to iPhone and iPad. Read without a local book limit. Customize typography, use bookmarks and notes, and connect one FolioSpace Library server for browsing, search, reading progress, and offline downloads. Unlock Pro with a one-time purchase. Pro includes page-turn animations, Mini Book, the full ambient sound collection, up to five saved FolioSpace Library servers, Calibre-Web and Komga connections, and Markdown notes export. No subscription is required. Core reading, accessibility controls, and your existing books and reading data remain available in the free edition. AI translation and bilingual reading are not included in this release. Terms of Use: https://foliospace.app/terms.html Privacy Policy: https://foliospace.app/privacy.html

Screenshots

Lucid Reader3 screens
FolioSpace Reader3 screens

Verdict

The call

The clearest difference is device support: FolioSpace Reader at 4 against Lucid Reader's 2. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Lucid Reader sells 1 one-off in-app purchase and FolioSpace Reader sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Lucid Reader ships an update every 3 weeks, FolioSpace Reader monthly. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.

Scorecard1 real difference · 9 level
Lucid Reader versus FolioSpace Reader: the parameters behind the verdict, then further details
ParameterLucid ReaderFolioSpace Reader
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 3 weeks — betterMonthly
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPadiPhone, iPad, Apple Watch, Vision Pro — better
Requires iOS17.0 — better18.0
Further details — not scored
Size7 MB7 MB
Age rating4+4+
DeveloperSatoshi Takezawa晓东 傅

In-app purchases

1 purchases

Lucid Reader

One-time1
  • Pro Mode$0.99
3 purchases

FolioSpace Reader

Subscriptions2
  • Monthly Pro$2.991 Month
  • Yearly Pro$19.991 Year
One-time1
  • Lifetime Pro$29.99

Questions

Is Lucid Reader free?
Lucid Reader is free to download, with in-app purchases available.
Is FolioSpace Reader free?
FolioSpace Reader is free to download, with in-app purchases available.
Do Lucid Reader or FolioSpace Reader have ads?
Neither Lucid Reader nor FolioSpace Reader shows ads.
Which is updated more often, Lucid Reader or FolioSpace Reader?
Lucid Reader ships an update every 3 weeks, and FolioSpace Reader monthly. Most recently, Lucid Reader was updated on October 12, 2026 and FolioSpace Reader on October 7, 2026.

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