Comparison

Prose Reader vs Oku

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

Head to head
About

Prose Reader

Features
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Prose is a clean, local-first reader for ePub and PDF books. Designed with a focus on speed, privacy, and simplicity, Prose works completely offline to keep your personal library secure on your device. Key Features: - Multi-format support: Read ePub 2, ePub 3, and PDF files. - Offline library: View your books in a custom cover grid or detail list. Search, filter, and sort by title, author, last read, or reading progress. - Tailored reading experience: Customize fonts, font size, margins, and line spacing for reflowable ePub books. Zoom and fit controls are available for PDF files. - Reading themes: Switch between light, dark, and sepia themes to match your environment. Themes apply across the entire application interface. - Local-first sync: Connect your own WebDAV server to sync books, reading positions, bookmarks, highlights, and settings. Sync runs in the background and resolves conflicts by keeping your furthest reading position. - Annotation and reference: Create bookmarks, highlight text, and look up definitions using the built-in offline dictionary. - Privacy and security: Your data is never sent to third-party services. WebDAV credentials are saved securely in your operating system keychain. There is no telemetry, analytics, or tracking.

About

Oku

Features
Read full description

Oku is a calm reading room designed to help you fall in love with books again. No ads, no stream of distractions β€” just you and your book. FEELS LIKE A REAL BOOK β€’ Pages curl under your finger; hold a tablet sideways and two pages sit side by side β€’ 14 reading themes and 19 typefaces, adjustable size, line spacing and margins β€’ Add your own EPUB and PDF files β€’ Highlight, take notes, bookmark, search inside the book β€’ Press and hold a word to see its meaning instantly AUDIOBOOKS β€’ Any book becomes an audiobook with one tap; each word lights up as it is read β€’ Natural voices in Turkish, English, Russian and Romanian β€’ Sleep timer and reading speed READING COMPANION β€’ Ask β€œWhat happened where I left off?” and get a short recap β€’ Ask about characters, hard words or historical background β€” it never spoils the ending β€’ Reading in another language? Translate any sentence into yours β€’ Short questions at the end of a chapter show how much you understood EYE COMFORT β€’ Warm light filter and extra dimming β€’ Automatic night mode in the evening β€’ Eye break reminders based on the 20-20-20 rule β€’ Soft contrast and airy letter spacing FOCUS AND HABIT β€’ 11 focus scenes: rainy library, fireside, night train and more β€’ Daily goal, streaks, badges and reminders β€’ A short survey builds your reader profile and personal tips β€’ Reading club with friends and a weekly family goal β€’ A shareable year-in-reading summary FOR KIDS β€’ Every child gets their own profile, shelf and badges β€’ Books suggested for their level, including stories in English β€’ Age-appropriate stories made just for them, about the things they love β€’ Parent PIN and a weekly reading report β€’ No email or password for kids β€” just a nickname and birth year TENS OF THOUSANDS OF FREE CLASSICS Public-domain books from Project Gutenberg, Standard Ebooks, Wikisource and more, added to your library with one tap. EVERYWHERE Your books, notes and current page are the same on iPhone, iPad and okureader.com. Books you open can be read offline. Your privacy matters: no ads, your data is never sold, and you can download all your data or delete your account at any time.

Screenshots

Prose Reader4 screens
Oku4 screens

Verdict

The call

Prose Reader and Oku are too close to call on the numbers: across 5 compared parameters β€” price, ads, in-app purchases and device support among them β€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

ScorecardNo meaningful differences
Prose Reader versus Oku: the parameters behind the verdict, then further details
ParameterProse ReaderOku
PriceFreeFree
Update frequencyEvery 2 monthsβ€”
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod β€” betteriPhone, iPad
Requires iOS15.0 β€” better16.4
Further details β€” not scored
Size124 MB43 MB
Age rating4+12+
DeveloperElia SalernoBBSOFT DIGITAL

In-app purchases

None

Prose Reader

No in-app purchases

None

Oku

No in-app purchases

Questions

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

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