Last updated: 12 July 2026
LumaCaption is built to be private by design: your video file is never uploaded, and with Candy Lite your audio and transcripts are processed entirely on your device. Candy Ultra (optional, premium) sends only the extracted audio to our third-party transcription providers for higher accuracy; it is never stored by us and your video file is never sent.
Account data — when you sign in with Google we store your email, name and a user id (via Supabase, our auth and database provider). Usage data — transcription minutes used, plan, referral activity, and coupon redemptions, so quotas and billing work. Payment data — payments are processed by Razorpay; we store payment ids, amounts and status. We never see your card or UPI details.
Your media. Videos never leave your device — transcription (Whisper/Vosk) and rendering run in your browser. Speech-model files are downloaded to your browser’s cache, not the other way around.
The app uses browser storage (cache, local storage, OPFS) for model files, in-progress projects and preferences. Clearing site data removes them.
Supabase (authentication, database), Razorpay (payments), Google (sign-in), PostHog and Microsoft Clarity (product analytics and session recording, to understand how the app is used and improve it), Meta (an advertising pixel that reports page views and whether you signed up, so we can measure our ads — it never receives your email, name or video), and content delivery networks that serve the app’s code, fonts and speech models. Each receives only what is technically necessary for its role. The videos you edit are never uploaded for analytics — captioning runs on your device (Candy Ultra sends only the extracted audio to the transcription provider you chose).
You can request a copy or deletion of your account data at any time — email support@lumacaption.com from your account address and we will action it within 30 days. Deleting your account removes your profile, entitlements, usage ledger and referral records; payment records are retained where tax law requires.
Questions about this policy: support@lumacaption.com.