ConvertKit (now Kit) is an email-first platform that automates email marketing, newsletter growth, and digital product sales for creators.
About Vocal
Vocal is an email marketing tool that converts written newsletters into audio versions using AI voices. It solves the problem of reaching subscribers who prefer listening over reading, especially commuters or busy professionals. Simply connect your email platform or paste content, and Vocal generates a podcast-style episode with natural voice narration, intro/outro music, and an RSS feed.
What it does
Vocal integrates with platforms like Substack, ConvertKit, and Mailchimp. It reads your newsletter aloud with AI voices, adds branded audio bookends, and creates a podcast feed for Apple Podcasts or Spotify. Episode scheduling syncs with your send time. For a personal touch, custom voice cloning is available.
Best for
Newsletter writers who want to engage audio-first subscribers, creators lacking time or equipment to record, and paid newsletters seeking a premium audio perk. This tool is not designed for team voice messaging or internal email communication—that need is served by Vocal's separate voice-email product.
Real use cases
Use Vocal to turn weekly Substack issues into podcasts for commuters, offer audio-only bonus content to premium subscribers, or make newsletters accessible to visually impaired readers. It requires no recording or editing skills.
Key features
- AI voice narration — Converts text to speech with multiple voice options and natural pacing
- Email platform integration — Connects to Substack, ConvertKit, Mailchimp, and others
- RSS feed generation — Creates a podcast feed you can submit to Apple Podcasts, Spotify, etc.
- Intro/outro music — Adds branded audio bookends automatically
- Episode scheduling — Syncs audio release with your newsletter send time
- Custom voice cloning — Option to use your own recorded voice for a personal touch
