Natural neural TTS · Beautiful reading

Beautiful reading. The best battery life in on-device TTS.

Turn EPUBs into audiobooks with natural neural voices from Supertonic and Kokoro, running right on your iPhone. Keep more chapters playing on every charge with no cloud narration or audio streaming.

  • Natural Supertonic and Kokoro voices
  • Best-in-class battery life
  • 100% on-device TTS
  • Background playback
Best battery lifePurpose-built for local TTS
Background playbackKeep listening across your iPhone
Natural neural voicesSupertonic and Kokoro
Premium EPUB readerBeautiful, focused & flexible
One-minute tour

See reading become listening.

Move from your library into synchronized on-device playback, set a sleep timer, and keep listening with the screen off - without losing your place.

  • Natural Supertonic and Kokoro voices
  • Voice, pace, and sleep controls
  • Background playback
1 MINUTE · REAL APP WALKTHROUGH
APP DEMO
Natural neural TTS, built for iPhone

Supertonic and Kokoro. More story per charge.

Choose between Supertonic and Kokoro for natural, expressive narration that runs right on your iPhone. Download your chosen model once, then listen privately in the background with no cloud narration or streamed audio.

Supertonic Ten expressive voices are included for natural listening across genres.
Kokoro Kokoro's warm Heart voice is included for rich, natural narration.
Background endurance Listen with the screen off, switch apps, and use Lock Screen controls while getting more chapters from every charge.
A premium reader, too

Built for listening. Finished for reading.

Settle in with a carefully tuned reader, then switch to efficient on-device listening without losing your place.

Natural voices beyond the reading screen

Choose Apple voices or download Supertonic and Kokoro for natural neural narration. Keep listening in the background, then return to the same place when you read.

Reading, shaped around you

Tune typography, page colors, tap zones, and layout for the kind of reading session you want.

See your reading rhythm

Private reading and listening insights help you see the time, books, and days behind your habit.

Pick up where you left off

Optional iCloud sync carries progress and preferences across your devices.

Bring your own books

Import EPUB, plain-text, and Markdown files into a focused library that stays yours.

Audiobookify Supporter artwork
Optional in-app subscription

More voices. Same private listening.

Audiobookify Supporter helps fund ongoing development and unlocks premium voices for Supertonic and Kokoro. Preview installed premium voices before subscribing, then use them for fully on-device narration.

Premium Supertonic voices Choose more voices for every kind of story.
Premium Kokoro voices Expand beyond the included Heart voice.
Future voices and models New Supporter additions are included as they arrive.

Supporter is optional. Ten Supertonic voices and Kokoro's Heart voice are included without a subscription. Apple handles purchases, restoration, and subscription management.

AVAILABLE INSIDE AUDIOBOOKIFY
Simple from the first page

Bring a book. Read or listen. Stay in flow.

Add your book, make the page your own, then listen without restarting the chapter.

Add your book

Choose a supported file, open one from another app, or use the optional fanfiction link importer.

Make reading yours

Adjust the page, organize your library, and let Audiobookify remember your exact place.

Switch to listening

Start listen mode when your eyes need a break and keep the chapter moving in the background.

Privacy by design

Your books belong to you.

Audiobookify is built around local reading and on-device speech. Network features are optional and clearly scoped.

No account requiredStart reading without creating a profile.
No tracking SDKsNo third-party analytics or cross-app tracking.
Local book storageYour imported library lives in app storage.
Optional connectionsiCloud, model downloads, and FicHub only when used.
Read the full privacy policy

Last updated: August 17, 2026

Audiobookify is designed as a private EPUB reader and listen-mode audiobook app. This Privacy Policy explains what information the app handles and how it is used.

Information We Collect

Audiobookify does not require you to create an account and does not collect personal information directly from you.

The app may store the following information locally on your device so the reader and listen mode can function:

  • Imported EPUB files
  • Book metadata from imported EPUBs, such as title, author, cover image, and book identifier
  • Reading progress, including chapter position, scroll position, listen-mode sentence position, Speed Reader word position, and when a book was last opened
  • Reading and listening history, including time spent per book and active dates
  • Reader and library-display settings and preferences
  • Text-to-speech settings, voices, text replacement rules, and playback preferences
  • Downloaded text-to-speech model and voice files if you enable optional on-device voices

Local EPUB Storage

When you import an EPUB from Files, from another app, or from a generated download, Audiobookify copies the book into its local app storage so it can appear in your library and reopen later.

Audiobookify also stores extracted reading files in the device cache while you read. Cache files may be removed by the system or by deleting the app.

iCloud Sync

If you enable iCloud Sync, Audiobookify may store reader data in your personal iCloud account so it can be backed up or restored across your devices.

This may include reading progress and when a book was last opened; listen-mode sentence and Speed Reader word position; reading and listening history, including book title and author snapshots; and reader and library-display settings and preferences.

iCloud data is stored through Apple's iCloud services and is associated with your Apple ID. Audiobookify does not operate its own server for iCloud Sync and does not have access to your Apple ID password.

Fanfiction URL Import

Audiobookify includes an optional Fanfiction URL import feature powered by FicHub. If you paste a story URL and choose to fetch or download it, Audiobookify sends that URL to FicHub so FicHub can return story metadata and generate or provide an EPUB download. FicHub may handle that request according to its own privacy practices.

You can also start this import from a Shortcut or by asking Siri to import a copied link. When you ask Siri, Audiobookify reads a single link from your clipboard so it can fill in the import screen; iOS asks your permission before the app can read clipboard contents. Nothing is read from your clipboard unless you start that action, the clipboard is never read in the background, and its contents are not stored or sent anywhere except as the story URL described above. Either way the import screen still shows you the story and waits for you to confirm before anything is downloaded.

Audiobookify does not control FicHub and is not responsible for FicHub's content, availability, data handling, or privacy practices.

Text-to-Speech and Model Downloads

Audiobookify includes listen mode using Apple voices and optional downloadable text-to-speech engines. Book text is processed for speech on your device by the selected engine. Audiobookify does not send your book text to an Audiobookify server.

When you install an optional on-device voice model, the app may also download its available lightweight voice catalog and connect to model download services used by the text-to-speech engine. Those services may receive standard network request information such as your IP address and user agent. Downloaded models and voice files are stored locally on your device and can be removed from the app's text-to-speech settings.

Purchases and Subscriptions

Audiobookify offers an optional Supporter subscription through Apple's App Store. Apple processes the purchase and associates it with your Apple ID. Audiobookify receives the product and entitlement status needed to unlock premium voices, but does not receive or store your payment-card details.

You can restore purchases in the Supporter screen and manage or cancel the subscription through Apple's subscription-management interface.

Web Content and External Links

Audiobookify renders EPUB chapters with Apple's WebKit technology from files stored on your device. EPUB books may contain links or references to external websites. If you open third-party websites or content, those sites may collect information according to their own privacy policies.

Audiobookify does not control third-party websites and is not responsible for their content, tracking, cookies, analytics, or privacy practices.

Analytics and Tracking

Audiobookify does not include third-party analytics, advertising SDKs, or cross-app tracking. The app does not sell your personal information.

Data Sharing

Audiobookify does not sell, rent, or share your personal information with third parties.

Data may be handled by Apple services when you use iCloud, TestFlight, crash reporting, App Store distribution, purchases and subscriptions, or other Apple platform features, subject to Apple's privacy policies.

Data may also be handled by FicHub if you choose to use Fanfiction URL import, and by model download services if you choose to download optional on-device text-to-speech models.

Children's Privacy

Audiobookify is not directed at children under 13. The app does not knowingly collect personal information from children.

Your Choices

You can remove locally stored library data by deleting books from Audiobookify or by deleting the app from your device.

You can delete an individual book's reading and listening history from the Reading Analytics dashboard without deleting the book or its reading position. When iCloud Reading Activity is in use, Audiobookify also removes or invalidates older synced analytics for that book so they are not restored by another device.

You can manage iCloud data through Audiobookify's iCloud Sync settings and through your device's iCloud settings. You can remove downloaded text-to-speech models and voices from Audiobookify's text-to-speech settings.

Changes to This Privacy Policy

This Privacy Policy may be updated from time to time. If changes are made, the updated version will be posted with a new “Last updated” date.

Contact

For privacy questions or support, email [email protected] or open an issue on GitHub.

Support that reaches a person

Need a hand?

Discord is the quickest place for help and conversation. GitHub is ideal for reproducible bugs and feature ideas; email is best for private or purchase questions.

  • Audiobookify version and build
  • Your iPhone model and iOS version
  • What happened and how to reproduce it

Discord community

Get help, share feedback, talk about books and voices, and follow what is coming next.

Join the Discord

GitHub issues

Report a reproducible bug, suggest an improvement, or follow development in public.

Create an issue
Your next chapter, your way

Beautiful reading. More chapters on every charge.

Natural Supertonic and Kokoro narration, efficient private on-device TTS, and beautiful reading. Audiobookify is now available on the App Store.