Privacy Policy

RevisionDeck is a study app. To help you revise, it has to hold on to your work — your subjects, the material you upload, the flashcards and quizzes you make, and what you and the AI tutor said to each other. This page explains exactly what that means, in plain English, and how to get all of it back or delete it.

Short version: your study material is yours. We don't sell it, we don't advertise against it, and we don't track you around the internet.

What we collect

Three kinds of thing, all of it because the product needs it to work.

• Your account. An email address, and a password we never see in readable form. If you sign in with Google instead, Google tells us your name, email address and profile picture — nothing else, and we never get access to your Google account itself.
• What you tell us during setup. Your first name, education level, subjects, curriculum, study goal, exam date, how many hours a week you want to study and which days. This is what lets the planner build a realistic schedule and the tutor pitch explanations at the right level. All of it is editable, and most of it is skippable.
• What you create and upload. Documents, PDFs and photos of notes; the text extracted from them; your chats with the tutor; flashcards, decks and review history; quizzes and your attempts; written notes; planner tasks; calendar events; and study session times so the app can show you your own progress.

What we don't do

RevisionDeck has no advertising and no tracking cookies, and we don't sell or rent your data to anyone or build a profile of you to sell to advertisers. Your uploaded material is never shown to other users.

We do use Vercel Analytics to count page views, so we can see which parts of the site are used. It is privacy-first by design: it sets no cookies, doesn't follow you across other websites, and doesn't collect anything that identifies you personally — it counts visits, not people. That is the only measurement on the site; there is no Google Analytics, no Meta pixel, and no advertising tracker.

Who else handles your data

We're a small operation and we don't run our own datacentre, so a few companies process data on our behalf. They are contractually limited to doing what we ask.

• Supabase — hosts the database, the sign-in system and the private file storage where your uploads live.
• Anthropic — provides Claude, the AI behind the tutor, the flashcard and quiz generation, the hints and the marking. When you ask a question, the relevant text from your material and your message are sent to Anthropic to produce the answer. Anthropic does not use content sent through their API to train their models.
• Google — only if you choose “Continue with Google”, and only to confirm who you are.
• Resend — delivers the emails we send you (see “Emails we send” below). Your email address and first name are shared with Resend so it can address and deliver them.
• Vercel — our hosting provider; serves the site and keeps short-lived server logs (IP address, page requested, timestamp) for security and debugging.

Emails we send

We keep email to a minimum. There are the essential account ones — confirming your address and resetting your password — which we always send. Then, unless you turn them off, there's a welcome when you join, the occasional exam or deadline reminder built from your own calendar, a gentle nudge if you sign up but don't get started, and the rare product update when we ship something new.

Every non-essential email has a one-click unsubscribe, and you can choose exactly which kinds you receive in Settings. We don't send anything else, and we never share your address with advertisers.

How it's kept safe

Every table in the database has row-level security switched on, which means the database itself refuses to return one person's rows to another person — it isn't left to the app to remember. Uploaded files sit in a private bucket that can't be read from a public URL. Everything travels over HTTPS. No system is perfect, but the boring fundamentals are in place, and we've tested them rather than assumed them.

Cookies and local storage

We use a cookie to keep you signed in, plus a few small functional cookies so the app can render correctly the moment a page loads — your theme, accent colour and time zone (the last so the calendar shows the right day for where you are). These are read by our server to render the page; none of them are advertising or tracking cookies, which is why you've never seen a cookie banner here. Your browser also keeps some preferences purely on your device — like which notifications you've already seen — and those never reach our servers.

How long we keep it

Your data stays for as long as your account does, because that's rather the point of a revision app — last term's flashcards are still useful. When you delete your account it goes, properly: your files are removed from storage, every row is deleted, and the login itself is destroyed. Backups roll off within 30 days. Deletion is not reversible and we can't recover an account afterwards.

What you can do

• See it — everything the app knows about you is visible in the app itself.
• Export it — Settings gives you a single JSON file containing all of your data, no request form and no waiting.
• Correct it — edit your profile and preferences whenever you like.
• Delete it — one button in Settings removes the account and everything in it.

If you're in the UK or the EU you also have rights under the UK GDPR and GDPR to object to processing, restrict it, or complain to your data protection regulator. Email us and we'll help rather than send you a form.

Younger students

RevisionDeck is built for students, but you need to be at least 13 to have an account. If you're under 18, please check with a parent, carer or teacher before uploading coursework. If we learn that an account belongs to a child under 13, we'll delete it.

Changes

If this policy changes in a way that actually affects you, we'll say so in the app rather than quietly editing the page and moving the date. The date at the top always reflects the current version.

Contact

Questions, concerns, or a request to delete something — email hello@revisiondeck.com and a human will reply.