Privacy Policy

We collect information in three ways: what you give us directly, what we collect automatically as you use the Service, and what we receive from third parties you choose to connect.

Information you provide

• Account information: your name and email address when you create a biu account, and your password (stored securely, hashed, and never visible to us) if you sign up directly rather than through Apple or Google.
• Your content: the videos, links, PDFs, photos, and notes you upload or paste into biu so we can generate summaries, flashcards, and quizzes for you ( “Your Content”).
• Learning activity: your quiz answers, flashcard performance, streaks, skip passes, and spaced repetition scheduling data.
• AI tutor conversations: questions you ask biu’s AI tutor and the material you ground those questions on.
• Waitlist sign-ups: if you joined our pre-launch waitlist on getbiu.app, we collected the email address you submitted.
• Communications: anything you send us directly, such as support requests to admin@getbiu.app.

Information collected automatically

• Device and log data, such as device model, operating system and version, app version, unique device identifiers, IP address, and crash or performance logs.
• Usage data, such as which features you open, session length, and general in-app behavior, collected through product analytics tools.
• A push notification token, if you enable notifications, so we can send you reminders (for example, to protect a quiz streak).

Information from third parties

• If you sign up or sign in using Apple or Google, we receive basic profile information (such as your name and email address) that those providers share with us, subject to your settings on that platform.
• If you purchase a biu Pro subscription, Apple or Google sends us confirmation of your purchase, subscription status, and renewal dates. We never receive or store your card, bank, or full payment details — those are handled entirely by Apple or Google.
• If a friend refers you using their referral link, we associate your sign-up with that referral code so we can credit their account, but we do not receive your contact details from them just because you followed their link.

We use the information above to:

• Provide the Service — create your account, process Your Content into summaries, flashcards, and quizzes, run the daily spaced-repetition schedule, and power the AI tutor.
• Maintain your streaks, skip passes, and referral bonus days, and credit the correct account when a referral is completed.
• Process and manage your free trial and Pro subscription, including communicating with Apple or Google about your purchase status.
• Send you service-related communications, such as streak reminders, quiz notifications, receipts, and important account or policy updates.
• Monitor, debug, and improve the Service, including diagnosing crashes and understanding which features are used and how.
• Detect, investigate, and prevent fraud, abuse of the referral program, security incidents, and violations of our Terms of Service.
• Comply with legal obligations and respond to lawful requests from public authorities.

We do not use Your Content or learning activity to show you third-party advertising, and we do not sell your personal information.

To turn what you upload into summaries, flashcards, quizzes, and AI tutor answers, biu sends the relevant parts of Your Content to third-party AI model providers, currently OpenAI, Anthropic, and Google. These providers process Your Content on our behalf, under contractual terms that prohibit them from using it to train their own models or share it with anyone else, and they do not retain it beyond what is needed to return a response to biu.

Because this processing happens for every piece of content you add, please avoid uploading anything you would not want processed by an AI system \u2014 for example, sensitive personal information about yourself or others that isn’t necessary for your studies.

We share information only with the service providers who help us run biu, and only to the extent needed for them to perform their role:

• Supabase \u2014 our database, authentication, and backend infrastructure provider, which stores your account data, Your Content, and learning activity.
• OpenAI, Anthropic, and Google \u2014 AI model providers used to generate summaries, flashcards, quizzes, and AI tutor responses, as described above.
• Firebase (Google) and PostHog \u2014 product analytics and crash-reporting tools that help us understand app usage and fix bugs. PostHog processes data on servers located in the United States.
• Meta and similar attribution partners \u2014 used solely to measure install attribution and marketing campaign performance. biu does not run in-app advertising and these partners do not serve ads inside biu.
• Apple and Google \u2014 to process your subscription purchase, deliver push notifications, and distribute the app through the App Store and Google Play.
• Google Sheets / Google Workspace \u2014 used to temporarily store email addresses collected through our pre-launch waitlist. Once the app launches, new accounts are created and stored directly in Supabase instead.

We may also share information if required by law, to protect the rights, safety, or property of biu or our users, or as part of a merger, acquisition, or sale of assets, in which case we will notify you before your information becomes subject to a different privacy policy.

We keep your account information, Your Content, and learning activity for as long as your account is active, so the app can keep working the way you expect. Waitlist email addresses are kept until launch or until you ask us to delete them, whichever comes first.

When you delete your account, we delete or anonymize your personal information and Your Content within 30 days, except where we are required to retain certain records for longer to comply with legal, tax, security, or fraud-prevention obligations, or where data persists briefly in encrypted backups until they are rotated out.

biu is operated from India, and our service providers host infrastructure in India, the United States, and other countries. Wherever your information is processed, we require our service providers to protect it consistent with this Privacy Policy and applicable law, including through contractual safeguards such as standard contractual clauses where required.

You can review and update your account information, and delete individual pieces of content, directly inside the biu app at any time. You can also permanently delete your account and associated data from within the app’s settings, or by emailing admin@getbiu.app.

If you are in the European Economic Area or United Kingdom

You have the right to access, correct, delete, or export your personal data, to restrict or object to certain processing, and to withdraw consent at any time where processing is based on consent. You may lodge a complaint with your local data protection authority.

If you are in California

You have the right to know what personal information we collect, to request deletion or correction of it, and to opt out of the “sale” or “sharing” of personal information. biu does not sell your personal information, and the only sharing we do for advertising purposes is limited to install-attribution data, as described above.

If you are in India

Under the Digital Personal Data Protection Act, 2023, you have the right to access a summary of your personal data and the processing activities involved, request correction or erasure, nominate another individual to exercise your rights in the event of death or incapacity, and file a grievance with us before approaching the relevant Data Protection Board.

Regardless of where you live, you can reach us at admin@getbiu.app to exercise any of these rights, and we will respond within the time required by applicable law.

biu is not directed at children under 13, and we do not knowingly collect personal information from anyone under 13. If you believe a child under 13 has created an account or provided us with personal information, please contact us at admin@getbiu.app and we will delete it promptly.

With your permission, biu sends push notifications to help you keep your streak and stay on top of your daily quiz. You can disable notifications at any time in your device settings or inside the app; this won’t affect any other part of the Service.

We use industry-standard safeguards to protect your information, including encryption in transit, access controls on our backend, and vetted third-party infrastructure providers. No method of transmission or storage is completely secure, so while we work hard to protect your information, we cannot guarantee its absolute security.

The Service is distributed through, and billed via, the Apple App Store and Google Play, and links to those platforms are governed by Apple’s and Google’s own privacy policies. If you sign in with Apple or Google, their privacy policies also govern the information they collect during that process.

We may update this Privacy Policy from time to time. If we make material changes, we will notify you through the app, by email, or by posting a notice on getbiu.app before the change takes effect. The “last updated” date at the top of this page always reflects the current version.

If you have questions about this Privacy Policy or how we handle your information, contact us at: