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Zumbo vs TTSLark

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Zumbo compared with TTSLark
DetailZumbo logo ZumboTTSLark logo TTSLark
What it doesOpen source dictation for Mac with local AI, instant speed and complete privacy Free text to speech with AI voices, subtitles and no character limit
StageNot given Not given
FoundedNot given Not given
Based inRO Not given
Pricing modelPaid Not given
PricingOne 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. Free: 5 credits that never expire (up to 50 minutes of audio). Starter: $6.99/month or $69.99/year (100 credits per month, up to 1,000 minutes). Creator: $15.99/month or $159.99/year (300 credits per month, up to 3,000 minutes). Credit packs: 100 credits for $5 that never expire (available on paid p
Key features
  • 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
  • 50+ AI voices in 9 languages
  • Create custom voices by blending any two voices
  • Up to 10 minutes of audio per credit
  • No character limit for text input
  • Commercial use license included on all plans
  • Adjustable voice speed from 0.5x to 2x
  • Emotion tags like laugh and sigh for premium voices
  • MP3 and WAV output formats on paid plans
  • AI script tidy pass on paid plans
What makes it different
  • 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
  • Subtitles are generated from the same render as the audio, ensuring perfect timing without manual adjustment
  • Free plan with 5 credits that never expire, sufficient for a full video or chapter
  • Over 23,000 voice combinations by blending 54 voices across languages
  • Server-side rendering allows long jobs to survive browser closure and phone rendering
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)3 no change since last check35 +5 (up) since last check
Trust Flow (Majestic)37
Citation Flow (Majestic)2231
Referring domains (Majestic)948

4 details filled in for both companies.

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