Comparison

Libris Reader vs Flumen

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

Head to head
About

Libris Reader

Features
Read full description

Libris Reader is a thinking-first reading app for people who want to understand what they read, not just collect highlights. Import EPUB books into a focused personal library, read with a calm and intentional interface, highlight important passages, and write book-scoped notes that stay tied to the source. When you need help unpacking a difficult section, Libris offers in-context AI explanations inside the book you’re reading, so clarification stays grounded in the text instead of drifting into generic chat. Libris is built for deep reading, re-engagement, and memory by choice. Notes remain user-authored. AI supports understanding, but your ideas stay your own. Features: Import and organize EPUB books in a personal library Read in a clean, distraction-aware reader Highlight passages and revisit them later Write notes scoped to each book Ask for AI explanations in the context of the current book Search your reading and return to important material over time

About

Flumen

Features
Read full description

Flumen is a calm, private EPUB reader for people who like building a real library full of ebooks. Import your own EPUBs, download public-domain classics from Project Gutenberg and Standard Ebooks, and keep everything organized in a library that feels made for reading. Covers, progress, metadata and collections all in one place, without ads or a social layer around your books. READ COMFORTABLY Choose from carefully tuned themes including Paper, Sepia, Night, and OLED Black. Adjust fonts and text size, then let Flumen remember your reading preferences for each book. The reader keeps the interface out of the way so the page can take the room it deserves. DISCOVER CLASSICS Search and browse public-domain books from trusted sources, preview book details, and download directly to your library. Explore authors, genres, popular classics, and curated rows without leaving the app. ORGANIZE YOUR LIBRARY Sort by recent, title, author, or progress. Create collections, use smart collections, rename books, track finished titles, and quickly return to what you were reading. READING PROGRESS THAT FEELS USEFUL Flumen tracks where you are, how much is left, and your active reading time. Optional goals, streaks, monthly summaries, and reading statistics help you understand your habits without turning reading into homework. PRIVATE BY DESIGN Your library, settings, and reading history are stored on your device by default. Flumen does not use third-party advertising or analytics SDKs to track your reading. FLUMEN PRO Flumen is free to start with a 15-book library. Flumen Pro is a one-time purchase that unlocks unlimited books, reading statistics, and private iCloud sync for your library, EPUB files, progress, settings, notes, and highlights across your Apple devices. Flumen is built for readers who want a quieter place for their books.

Screenshots

Libris Reader4 screens
Flumen4 screens

Verdict

The call

The clearest difference is in-app purchases: Libris Reader at none against Flumen's 1. Flumen's advantage is iOS requirement (17.0 vs 26.0). On price, ads and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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

Scorecard2 real differences Β· 4 level
Libris Reader versus Flumen: the parameters behind the verdict, then further details
ParameterLibris ReaderFlumen
PriceFreeFree
Update frequencyβ€”Every 2 weeks
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.017.0 β€” better
Further details β€” not scored
Size18 MB18 MB
Age rating4+12+
DeveloperVignesh IyerMathias Jaeger-Pedersen

In-app purchases

None

Libris Reader

No in-app purchases

1 purchases

Flumen

One-time1
  • Flumen Pro$6.99

Questions

Is Libris Reader free?
Libris Reader is free to download, with no in-app purchases.
Is Flumen free?
Flumen is free to download, with in-app purchases available.
Do Libris Reader or Flumen have ads?
Neither Libris Reader nor Flumen shows ads.

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