Broad document support
Open PDFs, EPUBs, Word files, OpenDocument files, Rich Text, Slides, Text, Markdown, and web articles in one reading library.
Fluence
Fluence reads PDFs, ebooks, reports, and articles aloud with text highlighting. Bookmark, annotate, ask document questions, and create audio files.
Read, listen to, and ask about documents
Fluence is a phone-based reading and listening app for books and documents. It opens PDFs, ebooks, reports, saved articles, and other supported files, then lets you read them on screen, listen to them aloud, or use questions to explore the document.
The app combines synchronized text and audio with document notes, bookmarks, and answers grounded in the file being read. It performs reading, speech generation, and question answering on the phone, and is designed to work offline so the library, notes, and recorded voice remain on the device.
Features
Choice of reading voice
Listen to a document with the voice supplied in the app, or create a personal reading voice from a short recording.
Follow-along playback
The sentence currently being spoken is highlighted, letting you track the audio against the text while reading.
Bookmarks and notes
Bookmark a line or write a note beside it while working through a document.
Document-based questions
Ask questions about a document and receive answers drawn from that document, with the relevant source passages shown.
Personal audiobook files
Prepare the complete document as a single audio file for later playback, including in the car or in another app.
Use cases
Read books and reports on the move
Import a book or report, listen while away from the screen, and keep the text available for checking passages when needed.
Study and review reading
Use sentence highlighting to maintain your place during audio playback, then bookmark important lines or add notes beside them for later review.
Interrogate a document
Ask a focused question about a long document and inspect the passages Fluence presents with the answer instead of searching through the entire file manually.
Create a personal audiobook
Turn a supported book or document into one prepared audio file to keep for playback in the car or to send to another app.
Pros and Cons
Pros
- Supports a broad list of document and article formats, including PDF, EPUB, Word, Markdown, and web articles.
- Highlights the spoken sentence for follow-along reading and supports bookmarks and margin notes.
- Answers questions from the current document and shows the passages used.
- Works offline with processing performed on the phone.
- Includes a 31-language voice and an option to create a voice from a short recording.
Cons
- Saving a generated audio file out of the app is reserved for the full version.
- The product site does not provide detailed evidence about team workflows, integrations, or platform support beyond phone use.
FAQ
What kinds of files and content can Fluence open?
Fluence opens PDF, EPUB, Word, OpenDocument, Rich Text, Slides, Text, Markdown, and web articles. These are the input types listed on the product site.
How does the read-and-listen workflow work?
You can read a document on screen, listen to it with a selected voice, and follow the spoken text as the current sentence is highlighted. Fluence can also answer questions using the document and show the passages supporting the answer.
What voices and languages are available?
Fluence includes a voice that reads 31 languages. You can also create a personal reading voice from a short recording you speak yourself.
Can Fluence create an audiobook file?
Fluence prepares audio for the whole document while you do something else. The prepared result is one audio file; preparing it is free, while saving the file out is included in the full version.
What does Fluence cost?
Ten documents can be used free. The full version costs €14.99 as a one-time payment and remains yours on phones signed in with the same Google account.
Quick Facts
- Category
- Reading and listening app
- Primary device
- Phone
- Supported inputs
- PDF, EPUB, Word, OpenDocument, Rich Text, Slides, Text, Markdown, and web articles
- Offline use
- Supported; processing takes place on the phone
- Free allowance
- Ten documents
- Full version
- €14.99 one-time payment
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