Read along while listening to audiobooks with word-by-word synchronization
Open source dictation for Mac with local AI, instant speed and complete privacy
Stage
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Founded
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Based in
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RO
Pricing model
Free
Paid
Pricing
Free core features including read-along text, device transcription, offline functionality, and public-domain library. Optional Pro upgrade for advanced analytics.
One Mac: $15 (or $9 for first 10 buyers); Three Macs: $20; Team (10 Macs): $79. 3-day free trial with everything unlocked. Free updates. 14-day refunds.
Key features
Word-level synchronized text highlighting with 60fps
On-device transcription without cloud upload
Offline playback after single engine download
Support for 99 languages
Import multiple audio formats including MP3, M4B, FLAC, OGG
Accessibility profiles for dyslexia, ADHD, and vision impairment
Built-in library with 20k+ public-domain titles
Quote saving and sharing with generated cards
Reading analytics with neuroscience-based brain score
Character map feature for tracking book figures
Dictation into any app with one keyboard shortcut
Local speech processing in about 200 milliseconds
Automatic clean speech with filler word removal
Learn corrections to improve accuracy per user
21 vocabulary packs for specialized fields
Custom vocabulary packs from CSV or JSON files
Notes with searchable history and time-based reminders
Meeting mode with speaker labels and timestamps
Supports 25 European languages
Runs completely offline with no account required
What makes it different
Complete privacy with no account or cloud uploads required
No external lyrics database; transcription generated directly from your audio
Supports your own audiobook files without DRM restrictions
No ads in core experience
Open source GPL-3 code on GitHub you can read, build and verify
Complete privacy with no server, no account, no audio sent anywhere
Fastest local transcription at about 200 milliseconds latency
One-time purchase with free updates and no subscription
Works in terminal, code editors and AI coding agents
Zumbo