Privacy Policy
Last updated: April 2026
What Koto collects
Koto is a local-first application. Your screenplay files, voice profiles, and brainstorm history live on your machine in folders you control. We do not have access to your writing.
Brainstorm sessions
When you chat with Koto, we do not store the content of your brainstorm sessions on our servers. Requests are sent in real time and not logged.
Your writing is never used for training
Your scripts, voice profiles, and brainstorm conversations are never used to train AI models — not ours, not anyone else's.
Account data
If you create a Koto account (for Pro features), we store your email address and subscription status via Supabase and Stripe. We do not store your writing or voice data on any server.
Analytics
We use privacy-respecting analytics (PostHog) on kotoscript.app to understand how people find and use the marketing site. The desktop app does not phone home or track usage.
Contact
Questions about privacy? Email hello@kotoscript.app.