Privacy Notice

Xander van Blokland, operating Study Buddy from the Province of Quebec, Canada, is the data controller for the personal data described here. That means we decide what data is collected and why. Contact us about privacy at StudyBuddySupportTeam01@gmail.com.

• Account details (username, display name, email address, password hash, and your profile photo if you sign in with Google) — to create and secure your account and to contact you about the service. Legal basis: performance of our contract with you.
• Study material you upload (workbook photos, documents, essays, and the notes, quizzes, flashcards, and study plans generated from them) and your tutor conversations — to provide the features you asked for and to show your saved library and progress. Legal basis: performance of our contract with you.
• Learning signals (quiz scores, confidence levels, streaks, minutes studied, topics you find hard) — to build your study plan and progress view. Legal basis: performance of our contract with you.
• Preferences (theme, language, reminder settings) — to keep the app set up the way you like it. Legal basis: performance of our contract with you.
• Technical and usage data (IP address, device and browser type, error logs, feature usage) — to keep the service secure, prevent abuse, and fix problems. Legal basis: our legitimate interests in a secure, working product.
• Support messages you send us — to answer you. Legal basis: performance of our contract and our legitimate interests.
• Marketing emails about product updates, only where you have opted in — you can unsubscribe at any time. Legal basis: consent.

We do not use your study material to train our own AI models, and we don't sell your personal data.

• Service providers who host and run the platform on our behalf — cloud hosting, database and file storage, email delivery, and error monitoring.
• AI providers who process the text and images you submit in order to generate notes, quizzes, feedback, and tutor replies. They process it to return a result to you, on our instructions.
• Stripe (and its Link service), which processes Pro subscription payments, manages subscriptions and invoices, prevents fraud, and handles tax compliance. Stripe collects your payment details directly; we never see your full card number.
• Professional advisers (legal, accounting) where necessary.
• Authorities, where we are required to disclose by law or to protect someone's safety.

Our providers may process data outside Quebec and Canada, including in the United States and the European Union. Where data leaves Canada we rely on contractual protections with those providers — such as standard contractual clauses — requiring a comparable level of protection.

• Account and profile data: while your account is open.
• Study material, notes, quizzes, tutor conversations, and learning signals: while your account is open, or until you delete the individual item.
• Billing and tax records: as long as tax and accounting law requires (typically up to 7 years), held largely by Stripe, our payment processor.
• Security and error logs: normally up to 12 months.

When you close your account we delete or anonymise your data within a reasonable period, except where we must keep records by law.

Under Quebec and Canadian privacy law you can ask us to: give you access to the personal data we hold about you; correct it if it's wrong; delete it; stop or limit certain uses; give you a portable copy; or withdraw consent where we relied on consent. You can also object to a decision based on automated processing of your file and ask us to explain it.

Email StudyBuddySupportTeam01@gmail.com and we'll respond within 30 days. If you're unhappy with our response you can complain to the Commission d'accès à l'information du Québec, or to the Office of the Privacy Commissioner of Canada.

We use appropriate technical and organisational measures to protect your data: encryption in transit, encrypted storage, row-level access rules so one account cannot read another's material, private storage for uploaded files, and limited internal access on a need-to-know basis. No system is perfectly secure, so please use a strong, unique password.

Study Buddy is for students aged 13 and over. If you are under 18, a parent or guardian must review and agree to our Terms with you. If we learn we've collected data from a child under 13, we'll delete it. Parents and guardians can contact us at StudyBuddySupportTeam01@gmail.com to review or delete a child's data.

We use strictly necessary cookies and browser local storage to keep you signed in and to remember your preferences such as theme and language. These are required for the app to work and cannot be switched off from within the app. We do not use advertising cookies. You can clear this data in your browser settings, which will sign you out.

If we make a material change we'll tell you in the app or by email before it takes effect. The "last updated" date above always reflects the current version.