A voice per character
The app analyzes each page to find who's speaking, then gives the narrator and every character a distinct voice.
Full-cast audiobooks
Your own ebooks, read by a full cast.
Bring any ebook and it reads aloud free on your device. Pay a little per book to give every character its own voice, or for richer studio-quality sound.
No account needed to start. iOS 18+ and Android.
The Adventures of Sherlock Holmes Playing Helen Stoner
"It is fear, Mr. Holmes. It is terror."
Sherlock Holmes
"You must not fear. We shall soon set matters right, I have no doubt."
Narrator
The door had been suddenly dashed open, and a huge man had framed himself in the aperture.
Dr. Roylott
"Which of you is Holmes?"
What makes it different
A step past text-to-speech.
Plenty of apps read a book aloud in one voice. BookNPC goes one step further: it works out who's speaking on each page and gives the narrator and every character their own voice, on any ebook you bring.
Studio quality, in the cloud
More than 300 studio voices, rendered ahead of time on cloud GPUs. The app picks one for each character by gender and age, and a whole book plays back smooth, without the flat, robotic edge of a built-in device voice.
Any language
Studio cloud audio speaks 10 languages: English, Mandarin, Japanese, Korean, German, French, Spanish, Italian, Portuguese, and Russian. For any other language, translate the book and hear it in your device's built-in voices.
Two ways to listen
Instant on your device, or studio from the cloud.
Same book, your call. Your device's voices play instantly and free; studio cloud audio sounds far richer, for a small per-book charge. Both work with one narrator or a full cast, and you can switch any time, even mid-chapter.
Instant
FreeYour device's built-in voices read any book the moment you open it.
- Works offline, with no limits
- Free on every book you bring
- Plays a full cast too, once a book is cast
Studio
Pay per bookRendered ahead on cloud GPUs, for the richest sound your book has ever had.
- 25¢ per finished audio-hour, metered to the second
- For one narrator or the whole cast, in 10 languages
- Render once, then replay free, offline, forever
See it in the app
The cast, at work.
The reader colors every line by its speaker, shows who is talking, and lists the whole cast so you can swap any voice.
Reads your files
The formats you actually have.
EPUB MOBI AZW FB2 TXT
Import from Files, a share sheet, or a download link.
No book handy?
Start with a ready-made one.
A growing shelf of classics, already cast in studio quality and free to listen. Pick one and it plays.
Pricing
Free to listen. Pay only for upgrades.
Your own books play free, with no hour limits. You pay only per book, and only for the extras: character voices, translation, or studio-quality sound.
Free forever
US$0Import your own books and listen free: one narrator, your device's voice, offline and unlimited, no account needed. A free catalog of classics is there too, once you sign in.
Cast & studio audio
Pay per bookGive every character its own voice (the app analyzes each page to find who's speaking), or render studio-quality cloud audio. A short book costs cents; a long novel a few dollars.
Ad-free
US$2.99 / monthOptional. Removes ads and the daily listening limit on catalog books. Your own books never had that limit anyway. Cancel any time.
Who it's for
Made for every kind of reader.
Commuters
Hands-free, offline listening for the drive, the train, or the walk. Once a book is on your device, it plays with no signal.
Multitaskers
Turn the reading pile into something you can do while cooking, cleaning, or winding down for the night.
Language learners
Read world literature in your own language, or hear it in the original. BookNPC can translate a book as it casts it.
Accessibility
A clear, natural voice for every page makes long-form reading comfortable for tired or low-vision eyes.
Bring a book. Hear it come alive.
Free on the App Store and Google Play.