Private by design

Your Books.Your Voice.Your Device.

CocoReader turns any EPUB ebook into a hyper-realistic audiobook — instantly and offline. Books and audio stay on your device. Just listen.

★★★★★ “Finally an audiobook app that doesn't spy on me.” — Trusted by readers who value their privacy.

The problem

Audiobooks Shouldn't Cost a Fortune — or Your Privacy.

Audiobooks are expensive.

A single audiobook can cost $15–$35. Subscriptions lock you into monthly fees just to access books you already own in another format. You bought the ebook. Why pay again?

Everything is in the cloud.

Most TTS apps send your content to remote servers to generate audio. That means your reading habits, your books, your highlights — all uploaded to someone else's infrastructure.

You're the product.

Free apps monetize through tracking, ads, and data collection. They know what you read, when you read, and how you read. That data has value — just not to you.

Features

Everything You Need. Nothing You Don't.

Upload Any EPUB

Import your own ebooks directly. No DRM restrictions, no locked libraries. Your books, your way.

Hyper-Realistic Voices

On-device AI voice generation that sounds natural, not robotic. You'll forget it's not a human narrator.

Fully Offline

Zero internet required after download. Works on planes, in subways, in the middle of nowhere.

Privacy First

Your books and generated audio stay on your device. We do not send book titles or text to analytics.

Built for iPhone & iPad

Native iOS design. Smooth reading and listening experience optimized for Apple hardware.

Subscriptions via Apple

Optional subscriptions are purchased and managed through your Apple ID. Cancel renewal in Apple subscription settings.

How it works

From Ebook to Audiobook in Three Taps.

  1. 01

    Import your EPUB

    Tap to upload any EPUB file from your Files app, email, or anywhere on your device.

  2. 02

    Open and start reading

    Your book is ready immediately. Browse chapters, jump to any section.

  3. 03

    Hit play

    On-device voice generation kicks in instantly. Listen while you commute, cook, or close your eyes.

That's it. Import a book and hit play.

Reviews

Readers Love CocoReader

I have a massive ebook library and always wanted to listen on the go. CocoReader is the first app that actually works — and doesn't feel like it's harvesting my soul.

Marcus T.

Avid reader

The voice quality blew me away. I expected a robotic mess and got something I genuinely enjoy listening to for hours.

Priya L.

Commuter

Offline support is a game changer. I travel a lot and finally have an audiobook experience that doesn't need WiFi.

James R.

Frequent flyer

On-device voices, my own library, no cloud upload of the book. This is how apps should be built.

Sara M.

Privacy-conscious user

FAQ

Got Questions? We've Got Answers.

What file formats does CocoReader support?
CocoReader supports EPUB files — the most widely used ebook format. If you have books from most major ebook stores or sources, they'll likely be in EPUB format.
Does CocoReader work without internet?
Yes, completely. All voice generation and playback happens on-device. No internet connection required after download.
Is my reading data collected or shared?
Your books and generated audio stay on your device. We do not send book titles or book text to analytics. The iOS app uses an account, product analytics, attribution, and crash reporting as described in our Privacy Policy.
Does it cost money?
Download CocoReader free from the App Store. Optional subscriptions are purchased through Apple and renew unless you cancel in your Apple ID subscription settings.
How realistic is the voice?
Very. CocoReader uses advanced on-device AI models to generate natural-sounding narration — far beyond the robotic TTS you might remember from older apps.
Can I use it on both iPhone and iPad?
Yes. CocoReader is designed natively for both iPhone and iPad.

Available on iOS & macOS

Download CocoReader

Available on iPhone, iPad, and Mac. Free to download.
Books stay on your device.

Your books. Your voice. Stays on your device.