Readyuga · Android
The offline AI ebook reader for people who read deeply.
PDFs, EPUBs, and scanned PDFs, read with AI that lives on your device. No subscription. No cloud. No account. Your library stays yours.
- No account. No sign-up. The app opens to your books.
- No ads. Ever. The app is the product.
- No tracking. Anonymous crash + usage telemetry only. No per-user profile.
- No cloud sync we didn't ask for. Sync is BYO-cloud (Obsidian/Joplin pattern), not a server we run.
What's inside
Six features that justify the download; many smaller ones that reward using it daily.
Reads PDFs and EPUBs
PDF and EPUB, including scanned PDFs with no selectable text. The on-device OCR kicks in only when a page needs it, silently in the background.
Offline AI, not cloud AI
Summarize a chapter, ask a question about the page, translate a word: all on your device. Nothing is uploaded, nothing is logged, nothing trains anyone else's model.
Dictionary and translation for dozens of languages
Tap a word. Get the definition first, translation as fallback. Offline dictionary for English, with Wiktionary packs for Portuguese, Spanish, Indonesian, German, and Korean. No data fees on a plane or a hike.
Neural narration
High-quality on-device voices (Lessac, Amy, Ryan) that turn a PDF into a listenable book. No streaming latency, no quota, no account.
Focus Beam and themed modes
Four free themes (Classic, Sepia, Dark, Lamp). Focus Beam dims the page around what you're reading. Reflow mode reshapes a textbook PDF into something that fits a phone screen.
Pay once. Keep forever.
No subscription. A single one-time Readyuga Pro unlock covers every paid feature (on-device AI, neural voices, premium themes, and more). Your copy is yours.
Questions people ask
Does Readyuga work without internet?
Yes. Reading, AI features (after the on-device model installs), TTS (after neural voice install), dictionary, and translation all work fully offline. The only network-touching thing is the Play Store listing and the one-time downloads for the AI model and neural voices.
Is the AI any good?
It runs Qwen 3 on-device for chapter summaries, page Q&A, key points, and contextual word meanings. It won't replace GPT-4, but for reading-adjacent tasks on a book you already have, it's more useful than it is impressive.
How big is the download?
The app itself is small. The on-device AI model is 1 to 2 GB depending on your device and downloads once on first use. Neural narrator voices are 50 to 80 MB each, downloaded only when you pick one.
Does it support non-English books?
Yes. The dictionary ships English (WordNet) plus Wiktionary StarDicts for Portuguese, Spanish, Indonesian, German, and Korean. Translation covers 100+ language pairs via Google ML Kit. AI responses work natively for English, Spanish, French, German, Arabic, Japanese, Korean, and Chinese; other languages roundtrip through English.
Is there an iPhone version?
Not yet. iOS is on the long-term roadmap but Android ships first.