Out now on iOS

Transcribe Any Audiobook.

Dive into a galaxy of knowledge — every word lights up in sync with the narration, transcribed privately on your phone. No account. No cloud.

Download on theApp Store

🌟 Free to download, Zero Ads.

Listening alone is easy to lose. Reading along is hard to forget.

100% on-device transcription Word-level sync at 60 fps Works offline after one download No account, ever Thousands of free classics
Reader notes

Already finding their place in HushBook.

From the small playback details to the first word lighting up, readers are noticing what changes when listening becomes reading too.

u/larryloveinsteinReddit

Seriously loving the app

“Hello, seriously LOVING the app! I am wondering where quotes are stored?”

marksewellApp Store

Just what I needed!

“I’ve tried BookPlayer, Bound, and Apple Books. HushBook is the first app that correctly displays chapter elapsed and remaining time on my 2017 Toyota Camry JBL head unit, the steering wheel controls change chapters correctly, and the on-device transcription is excellent. Thank you!”

u/larryloveinsteinReddit

Made for daily reading

“Hello! I have it downloaded and very cool app. Is there a way to increase playback speed? I find that’s the only thing from incorporating this into my daily reading.”

u/authorsanuReddit

Make it Live for Android!

“Hi, is HushBook available for Android?”

Reddit readerReddit

An app I’ve always wanted

“I’ve always been interested in an app like this!”

u/MomofliesReddit

Exactly what I’ve been waiting for

“AHHHHHH I’VE BEEN WAITING FOR SOMETHING JUST LIKE THIS. THANK YOUUUUUUUUUUU!”

chihuatlanApp Store

“Looking forward to trying this out”

HarvensonJamesIIApp Store

“I really like where you’re headed with this app. It would be great if you added the ability to change the speed”

X-AANIApp Store

Brilliant app for staying focused!

“I love the on-device transcription and the specialized reading modes (the dyslexia font and high-contrast layouts are fantastic). Highly recommended!”

u/Temporary_RelevantReddit

Deserves five stars

“I just downloaded it. It deserves really 5 stars! Good work”

How it works

From audio file to read-along, in three taps.

Pick a book, tap Transcribe, and the HushBook Engine gets to work — chapter by chapter, right on your phone.

01

Pick a book

Browse free classics or import your own MP3, M4B, FLAC, OGG and many more.

HushBook library with imported and public-domain audiobooks
02

Tap Transcribe

One tap per chapter. Chapters in M4B files are detected automatically.

Book info screen with Transcribe buttons for each chapter
03

The Engine works

The HushBook Engine transcribes every spoken word into synchronized text that moves with the narration.

Chapter one transcribing with a progress bar
04

Read along

Every word lights up with the narrator. Tap any word to jump there.

Reading along with The Count of Monte Cristo — every word highlighted in sync with the narration
The HushBook Engine

Transcribed on your phone. Never the cloud.

The speech-to-text that powers HushBook runs natively on your device. Your audiobooks are never uploaded — there is no server to upload them to.

  • Nothing leaves your phone. Audio, transcripts, notes, scores — all stored locally.
  • No account, no sign-in. Open the app and start reading.
  • Fully offline after a one-time engine download — on a flight, in a tunnel, anywhere.
  • Thermal-aware. Long books transcribe in chunks, resume on failure, and keep your phone cool.
QR code linking to hushbook.app
Scan with your iPhone or Android camera
to get HushBook.
Quotes

Save the line. Share the card.

Catch a quote the moment you hear it — two taps in the read-along, yours to keep or post.

Ninety‑nine languages

Translate any audiobook

Spanish, Hindi, Japanese, Arabic, French — ninety-nine languages in all. HushBook listens in the tongue a book was meant to be heard in, then paints every word in time, so you read along no matter where the story comes from.

99 languages
HushBook reading along to a Spanish poetry collection
Español · Spanish Poetry
HushBook reading along to Los Motivos del Lobo by Rubén Darío in Spanish
Español · Rubén Darío
HushBook reading along to an Italian poetry book
Italiano · Due esempi di poesia
HushBook reading along to Épigramme by François Maynard in French
Français · François Maynard

The fastest way to explain it

Apple‑Music lyrics, for books.

Choose your reading profile: Comprehension, Dyslexia/ADHD, or Vision
Reading profiles

An app that fits how you read.

Pick a profile once and the whole app adapts — fonts, caption sizes, colors, contrast, and spacing. Not a settings toggle buried three menus deep. The app, reshaped.

ComprehensionFor daily readers — focus tools, night mode, and a clean reading rhythm.
Dyslexia / ADHDOpenDyslexic and friends, color overlays, generous spacing — and a highlight that anchors your eye to the voice.
VisionAtkinson Hyperlegible, very large captions, and high-contrast themes built for low-vision reading.
OpenDyslexic Atkinson Hyperlegible Lexend Andika Comic Neue Reading overlays A− / A / A+ sizing High-contrast themes Line-spacing control Night mode
HushBook home with featured books and your library My Collections library grid with an Upload Audiobook tile
Your library

Thousands of classics, free — or bring your own.

A built-in catalogue of public-domain audiobooks from LibriVox and the Internet Archive, in six languages. Download one and the transcription starts on its own — you're reading along in minutes.

Already own your books? Import MP3, M4A, M4B, AAC, WAV, FLAC, OGG and many more. Chapters, covers, and metadata come along automatically.

Your reading life

Watch your reading brain light up.

A private analytics suite, computed entirely on your device. A brain score from 0 to 100 grows with your streak, words read, comprehension, and consistency — across eight levels, from Just Starting to Peak Brain Health.

Words are counted from the actual transcript — real words you really heard. Every card is shareable as a polished image.

Brain Health score with the factors driving it Words trend and total books read this year
Advanced Analytics · Pro

Advanced analytics, at your service.

Go deeper than streaks — when you start, when you stop, what you reach for, and how many words you really heard. Every number computed from your transcripts, on your device.

Habit insightsHabit Insights: usual listening hour, longest session, most active day
Genre radarMost-read genres radar chart
Your daily rhythm Advanced analytics: start and end of listening per day, and your top categories
Words per bookWords per book bar chart
Honest goalsGoal setting sheet for books and words

Habit insights · genre radar · words per book · honest goals — every card shareable as a polished image.

7-day streak badge 30-day streak badge 10 books badge 100,000 words badge 50 hours badge First transcript badge

Streaks you can hold in your hand — 30+ collectible badges for streaks, books, words, hours, and firsts.

Character detail sheet — role, first seen, attributes and relationships Character relationship graph with draggable nodes
Reading companions

Map the cast as you read.

Sprawling novels get confusing. Drag characters onto a canvas, draw the lines between them, and label each one in your own words — ally, rival, brother, admires. Your map lives with the book.

And when a line stops you cold: tap the first word, tap the last, and it's saved as a quote — ready to share as a card.

Wherever you are

Made for your everyday.

No reading nook required. HushBook fits the moments you already have — and turns them into pages.

Browsing the HushBook home screen on the couch

Your couch.
Your next chapter.

Pick up exactly where you left off, before the kettle boils.

Reading along with Project Hail Mary in bed at night

Your 11 PM.
Lights off, words on.

The room goes dark. The words keep glowing.

Listening to The Lord of the Rings on a park bench

Your lunch hour.
Middle-earth included.

Fully offline — the park has no Wi-Fi, and it doesn't matter.

Questions?

Answers.

No. Transcription runs entirely on your device — there's no upload, no account, and no server. After a one-time engine download, the whole app works offline.

HushBook generates them from your audio with the on-device HushBook Engine — there's no lyrics database. The first pass on a long book takes a while; after that, it's instant every time you open it.

MP3, M4A, M4B, AAC, WAV, FLAC, OGG, OPUS, OGA, AIFF, AIF, MKA, and ALAC — one file per import. Chapters inside M4B files are detected automatically, along with cover art and metadata.

The core read-along experience and the public-domain library are free. There's an optional Pro upgrade for advanced analytics — going Pro helps keep HushBook independent and improving.

The Engine is thermal-aware: it caps its worker threads and rests between chunks to keep your phone cool, and it resumes automatically if a long transcription is interrupted.

Anyone who reads with their ears — and especially readers with dyslexia, ADHD, or low vision, language learners, and anyone who focuses better when they can see the words they hear.

Yes — night mode swaps the blurred cover backdrop for a solid dark canvas, and the Vision profile adds high-contrast themes like white-on-black and amber-on-black.

HushBook monogram

Start reading along with every word you hear.

Free on iPhone and Android. No account. Nothing to set up but you.

Download on theApp Store
Transcribed privately on your phone — never the cloud.