Reedflow:Read-Along Audiobooks

Turn any ebook into an audiobook — and read along as it plays.
Reedflow converts your PDF, EPUB, and TXT files into spoken audio using high-quality, on-device voices. Every sentence lights up in sync as it's read aloud, making it ideal for language learners, people with reading difficulties, or anyone who wants to absorb books faster by listening and reading simultaneously.
How it works
Import any PDF, EPUB, or TXT file from your device. Press play. Reedflow narrates your book sentence by sentence, with each sentence highlighted in real time so your eyes always know exactly where the audio is.
Fully offline, fully private
All text-to-speech runs on your device using choice of multiple offline TTS engine. Your books and generated audio never leave your phone. No cloud TTS costs, no internet required for playback. Keep your content secure and locally always!
Multiple voice options
Choose from a range of downloadable medium to high-quality English voices including natural-sounding voices, works even for older devices (medium quality) while the HD versions would work well with newer flagship models. Reedflow also supports Chinese text-to-speech for bilingual and Chinese-language books, automatically switching voices based on the script being read.
Smart reading features

Tap any sentence to jump the audio to that point
Bookmark your favourite passages
Navigate by chapter (EPUB)
Adjust playback speed from 0.75× to 2×
Choose your preferred font size
Continue exactly where you left off, across devices

Your library, your way
Import unlimited books. All files stay on your device — Reedflow only syncs your reading position and bookmarks to the cloud so you can resume on any signed-in device.
Free & Pro
The free tier includes 20 minutes of listening per day — enough to sample the app and listen to shorter content. Upgrade to Reedflow Pro for unlimited daily listening. No ads on any tier.