Privacy Policy
Last updated: October 24, 2025
1. Who We Are
Capti is operated by Lab 37 ("we", "us", "our"). We provide AI-assisted tools to generate multilingual captions for Final Cut Pro.
2. What We Collect
- Account data: Provided via Clerk (e.g., email, name, and identifiers managed by Clerk).
- Billing data: Processed by Stripe via Clerk. We do not store full payment card details.
- Job data: For each captioning job, we store job metadata, audio files, transcription files (list of words with timestamps), grouping files (list of words within groups), SRT files, and FCPXML files.
- User data: Presets, subscription information, and credit amounts.
- Usage data: Anonymous metrics and analytics via Vercel Analytics and PostHog.
3. How We Use Data
- Provide, operate, and improve Capti.
- Process audio transcription using AssemblyAI and caption grouping using Groq.
- Manage authentication and billing via Clerk and Stripe.
- Communicate account and billing notifications via Clerk, and marketing emails via Loops.so (with your consent).
- Maintain security and prevent abuse.
- Collect anonymous usage metrics via Vercel Analytics and PostHog.
4. Data Sharing
We share data with the following third-party providers to deliver our service. See our Data Processing & Providers documentation for complete details and links to each provider's privacy policy:
- Convex: Storage of all job files and user data (Privacy Policy)
- AssemblyAI: Audio transcription processing (Privacy Policy)
- Groq: AI-powered caption grouping (Privacy Policy)
- Clerk: User authentication and account management (Privacy Policy)
- Stripe: Payment processing (Privacy Policy)
- Loops.so: Email marketing automation (Privacy Policy)
- Vercel: Web hosting and analytics (Privacy Policy)
- PostHog: Product analytics and user behavior tracking (Privacy Policy)
- Vercel: Web hosting and analytics (Privacy Policy)
5. Data Retention
User data and job files are stored on Convex and will be automatically deleted after 2 years of account inactivity. You can manually delete individual jobs from the job page or delete your entire account from the user menu at any time. When you delete your account via the Clerk user menu, we immediately delete all associated data and files from Convex.
6. Your Rights
- Access, correct, or delete your data.
- Export your data where applicable.
- Withdraw consent where processing is based on consent.
To exercise rights, contact us at contact@usecapti.com. You can also manage your account directly in Clerk.
7. Security
We implement reasonable technical and organizational safeguards. No method of transmission or storage is 100% secure.
8. International Transfers
Data may be processed in regions where our providers operate. We rely on appropriate safeguards where required.
9. Children
Capti is not intended for children under 16. We do not knowingly collect personal data from children.
10. Changes
We may update this Privacy Policy from time to time. We will update the "Last updated" date when changes are made.
Contact
Lab 37 — 9 Rue Camille Claudel, 92110 Clichy — contact@usecapti.com