Your books, read aloud.

Offline. Private. Pay once.

An offline-first Android ebook reader with a natural AI voice that runs entirely on your phone — no cloud, no account, no subscription.

Coming soon to Google Play EPUB · PDF · TXT · CBZ · on-device neural narration

On-device narration

A natural neural voice (Kokoro) synthesizes speech right on your phone. No internet needed to listen.

Read-along highlighting

The sentence and the current word light up as it reads — a genuine aid for dyslexia and low vision.

Every format

EPUB, PDF, TXT and CBZ in one calm, distraction-free library with Light, Sepia and Dark themes.

Private by design

Offline-first. No accounts, no ads, no analytics, no tracking. Your books never leave your device.

Pro, your way

Unlimited narration, 11 voices, sleep timer, speed control and background playback — a one-time unlock.

Pay once

No per-minute fees and no subscription. Because the voice is local, unlimited listening is a single purchase.

Cloud readers rent you narration by the month. Lumen lets you own it — the voice runs on your phone, so unlimited listening is a one-time unlock.