Episteme vs EPUB Reader
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Episteme
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Episteme Reader is an offline-first, privacy-focused document and e-book reader. It supports PDF, EPUB, MOBI, AZW3, FB2, ODT/FODT, DOCX, Comics, Markdown, HTML, and plain text files. ⢠Two Reading Modes Switch between a paginated view for a traditional book-like experience and continuous vertical scrolling for quick reading. Both modes work across all supported formats. ⢠PDF Annotations Draw directly on PDF pages using pen, fountain pen, pencil, highlighter, and eraser tools. Add text boxes anywhere on a page with system or imported fonts. Annotated documents can be exported with full vector fidelity. ⢠Custom Fonts Import your own font files (.ttf, .otf) and use them while reading any ebook format. Embedded book fonts and system fonts are also fully supported. ⢠Text Selection & Search Select, copy, and search text across all formats. Full-text search with background indexing for large documents. built-in OCR support for scanned or image-based PDFs. ⢠Text-to-Speech Listen to any document using your device's TTS engine. ⢠Smart Tools (Pro) Get context-aware dictionary definitions for words and phrases. Generate concise summaries of chapters or pages to quickly understand complex material. ⢠Library & Organization Manage your collection with custom shelves and collections. Sort by title, author, or reading progress. Jump back into recent books instantly. ⢠Local Folder Sync Point Episteme at a folder on your device to automatically import and track books. ⢠Privacy Episteme is designed to work entirely offline. No account is needed for any core feature. AI-powered\online features process data securely in memory without storing any user content.
EPUB Reader
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Bunko is an EPUB reader and ebook reader for books you already own. Import your files, build a personal library and read offline without creating an account. Adjust the text and theme, save highlights and notes, and continue where you left off. MAKE EVERY PAGE YOURS ⢠Flip pages with a realistic page curl animation or switch to scrolling. ⢠Adjust font size, line spacing, margins and text alignment. ⢠Choose light, sepia or dark mode, with system theme support. ⢠Pick up where you left off with saved reading progress for every book. HIGHLIGHTS & NOTES ⢠Highlight meaningful passages in your favorite colors. ⢠Save notes alongside selected text. ⢠Find and revisit every highlight and annotation in seconds. YOUR BOOKS. YOUR DEVICE. ⢠Import from Files, iCloud Drive or compatible apps. ⢠Organize and search your library by book title or author. ⢠See covers, reading progress and recently opened books. ⢠Read offline without creating an account. LISTEN, TRANSLATE & LEARN ⢠Read Aloud (Pro): Listen to your books with text-to-speech and adjustable playback speed. ⢠Translate & Dictionary (Pro): Select text to translate words or look up definitions while you read. BUILD A READING HABIT ⢠Track a 7-day reading streak and earn 3 days of Bunko Pro. ⢠Create a shareable Bunko Recap of your reading year (Pro). EPUB READER, PDF READER & MORE ⢠EPUB: Enjoy reflowable text, chapters, a table of contents and reading progress. ⢠PDF: Open documents with smooth, high fidelity rendering. ⢠DOCX & TXT: Turn everyday documents into a comfortable reading experience. ⢠CBZ, CBR, ZIP & RAR: Browse comics and image archives page by page. ⢠XLSX: Quickly view spreadsheets whenever you need them. FREE READING & BUNKO PRO Start free with up to 10 book imports. Upgrade to Bunko Pro for unlimited imports, Read Aloud, instant translation, dictionary features and Bunko Recap. Your purchase also helps support ongoing development. PRIVATE BY DESIGN Read imported books offline. Translation and dictionary lookup require internet access and send the selected text to Google. Bunko uses Firebase Analytics for usage analytics, AdMob for ads and RevenueCat for purchases. Ads may appear in the library; Bunko Pro removes them. See the privacy policy for details. READ IN 15 LANGUAGES English, Turkish, German, French, Spanish, Italian, Portuguese, Russian, Arabic, Hindi, Indonesian, Japanese, Korean, Thai and Chinese. Choose a monthly or yearly auto-renewable subscription, or a one-time lifetime purchase. Payment is charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current subscription period. Manage or cancel subscriptions in your Apple ID account settings. Restore previous purchases anytime from Settings. Bunko is a reader, not a bookstore. It does not sell, provide or distribute books; it opens files you already own. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://furkanislek.github.io/bunko-privacy-policy.html
Screenshots
Verdict
The clearest difference is ads: Episteme at none against EPUB Reader's shown. EPUB Reader's advantage is iOS requirement (15.0 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Episteme sells 5 one-off in-app purchases and EPUB Reader sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
Episteme ships an update every 3 days, EPUB Reader every 6 days. Both last shipped on October 29, 2026.
| Parameter | Episteme | EPUB Reader |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days ā better | Every 6 days |
| Ads | No ā better | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad, iPod ā better |
| Requires iOS | 17.0 | 15.0 ā better |
| Further details ā not scored | ||
| Size | 102 MB | 46 MB |
| Age rating | 12+ | +4 |
| Developer | Aryan Raj | Furkan Akif ISLEK |
In-app purchases
Episteme
- Wallet Top-Up $1$0.99
- Wallet Top-Up $5$4.99
- Episteme Pro$5.99
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- Wallet Top-Up $10$9.99
- Wallet Top-Up $20$19.99
EPUB Reader
- Bunko Pro Monthly3 Days trial$0.991 Month
- Bunko Pro Yearly3 Days trial$5.991 Year
- Bunko Pro Lifetime$9.99









