Privacy Policy

• Account details — your email address, and, if you use Apple or Google sign-in, the basic profile information those providers share with us.
• Learning preferences — the language you’re studying, your level, and your interface language.
• Uploaded study material — the photos, audio recordings, PDFs, and text you upload so the Service can transcribe and organize them.
• Payment information — handled by our payment processor (Stripe). We do not store your full card number.

We collect limited technical data needed to operate the Service, such as basic device and app information, and — if you enable reminders — a push notification token. We use this to keep the app working, secure, and reliable.

• to provide the Service — transcribing, analyzing, and organizing your study material;
• to manage your account, plan, and subscription;
• to send review reminders and important service messages;
• to keep the Service secure and to prevent abuse; and
• to comply with our legal obligations.

To deliver core features, your content and data are processed by trusted third-party providers acting on our behalf:

• Anthropic (Claude) — analyzes your study material to generate dictation, grammar, vocabulary, role-play, and quiz content.
• OpenAI (Whisper) — transcribes audio recordings into text.
• Supabase — database, authentication, and file storage.
• Stripe — payment processing for Pro subscriptions.
• Resend — sends review and account emails.
• Cloudflare — hosts our backend API.

We do not sell your personal information, and we do not use your uploaded content to train AI models.

We keep your account information and study material for as long as your account is active. When you delete content or your account, we delete the associated data from our systems within a reasonable period, except where we must retain it to meet legal, security, or accounting requirements.

Your files are stored in private, per-user storage, and access links are short-lived. We use industry-standard measures, including row-level access controls and encryption in transit, to protect your data. No method of transmission or storage is completely secure, but we work to protect your information.

Depending on where you live, you may have the right to access, correct, export, or delete your personal data, and to object to or restrict certain processing. You can:

• update your preferences and language from the Profile screen;
• delete uploaded sessions from within the app;
• turn reminder notifications on or off; and
• request account deletion or exercise other rights by emailing support@langnote.app.

The Service is not directed to children under 13 (or the minimum age of digital consent in your country), and we do not knowingly collect their personal information. If you believe a child has provided us data, contact us and we will delete it.

Our providers may process and store data in countries other than yours. Where required, we rely on appropriate safeguards to protect your information when it is transferred internationally.

We may update this Privacy Policy from time to time. We will update the “Last updated” date above and, for material changes, notify you in the app or by email.

Questions about your privacy or this policy? Email us at support@langnote.app.