AudioBookSync

AudioBookSync is the intelligent audiobook player that bridges listening and reading.

LISTEN YOUR WAY
• Plays M4B, MP3 and MP3 folders
• Background playback with lock-screen controls
• Adjustable speed (0.5× to 3×)
• Adaptive skip-back when resuming — AudioBookSync remembers where you stopped
• Sleep timer (including "end of chapter")
• Bookmarks with notes

FIND ANY SPOT IN YOUR BOOK
• Point the camera at a page — OCR + fuzzy matching jump the audio to the exact passage
• Works with printed books, screenshots and handwritten pages
• Fully on-device: no cloud, no upload, no tracking
• Choose between Apple Speech (fast) or Whisper (local, best for German)

READ WHERE YOU STOP LISTENING
• Built-in EPUB reader with themes (Light/Dark/Sepia), 8 fonts, adjustable size and margins
• "Listen here" button jumps from reader to the matching audio position
• Seamless cross-navigation: open the book in either mode

CARPLAY + HOME-SCREEN WIDGET 
• CarPlay: full library, chapter navigation and Now Playing while driving
• Home-screen widget: current book with progress ring and quick actions
• No subscription, no upsell — included with the free version

iCLOUD DRIVE LIBRARY
• Drop your audiobooks into iCloud Drive → AudioBookSync → Audiobooks
• Bookmarks and library state stay on your device
• Nothing ever leaves your iCloud account

AUDIOBOOKSYNC PRO — OPTIONAL ONE-TIME PURCHASE
The free version keeps one audiobook active at a time. Switch books for free at any time, or unlock Pro for:
• Unlimited audiobooks — use your entire library at once
• Multi-device sync — listening progress syncs automatically between iPhone and iPad via your private iCloud Drive
• Shared transcription index — transcribe a book once, every other device picks up the index
• Apple Watch —  slice off a section of your audiobook, send it to your Apple Watch and listen offline — leave the iPhone at home. Position syncs back to iPhone and iPad automatically.

NO ADS. NO SUBSCRIPTION. NO TRACKING.
Your library, your bookmarks, your progress — all stored in your iCloud Drive.