We share data with the following third-party providers, each bound by contractual privacy obligations:
- Clerk Authentication & identity · United States
- Email, name, password hash, session tokens.
- Stripe Payment & subscription management · United States, Australia
- Payment details (handled directly by Stripe - never stored on our servers), email, billing country.
- Vercel Hosting, database, blob storage · United States, European Union
- All application data.
- OpenAI AI tutoring responses, content moderation, image generation, transcription, and content-matching (embeddings) · United States
- Topic, conversation context, uploaded document text, learner age band (a number, not a date of birth). Inputs are not used to train OpenAI's models on our paid API tier.
- Anthropic Diagram generation (Mermaid / SVG) · United States
- Diagram subject strings only.
- Deepgram Voice input (speech-to-text) and read-aloud narration (text-to-speech) · United States
- For voice input, a learner's spoken audio when they choose to dictate a question or answer using the microphone - available to every signed-in learner. For narration, short paragraphs of generated tutoring text. Audio and transcripts are processed transiently and are not used to train Deepgram's models.
- Resend Transactional emails · United States
- Your email address and the emails we send you, such as sign-in codes, our replies to your help requests and weekly progress summaries.
- Sentry Error monitoring and safety/feedback review · United States
- Sanitised error events (request bodies for AI routes are stripped; emails are redacted), plus your sanitised feedback comments when you rate a response.
- Mixpanel Product usage analytics · United States
- Pseudonymous usage events tied to the account, not the individual child profile: page paths, event names, and categorical or numeric properties only (such as subject codes, quiz scores, subscription state). No name, email, or learner-typed content.
- Google Advertising conversion measurement (Google Ads) on our marketing website only · United States
- Click identifiers (such as
gclid), first-party measurement cookies (such as _gcl_aw), IP address, and basic browser metadata. Used to measure whether visits from our advertising lead to signups. Not loaded inside the tutoring app. - Browser push services Study-reminder delivery, via your browser's own push service (Apple, Google, Mozilla, Microsoft) · United States
- If you turn on study reminders, an anonymous push subscription (an endpoint your browser generates) and the notification itself - a short title and message only, with no learning content. Used solely to deliver reminders you have opted into; the message is encrypted so the delivery service cannot read it, and we hold no account with these services.