Privacy policy
Last updated 7 November 2026
In short
We collect as little as we can. No ads, no tracking across apps or sites, no advertising ID, and we never sell personal data.
Who we are
Dean Prep is run by Webb Labs Ltd, company number 16424696, 59 Gladstone Road, Watford, Hertfordshire, WD17 2RA, United Kingdom.
Using the free version
The free version needs no account. Your study progress is stored only on your device (in your browser's storage, or in the app's own files) and is not sent to us. You can export it, or delete it by clearing the app's data.
When you buy and create an account
To sell access and keep your progress in step across devices we will keep: your email address and, if you give it, your name; your country (for prices and tax); your orders and access codes; your devices (to apply the 3-device limit); and your study progress. Payments are handled by Stripe or PayPal; we never see your full card number.
Signing in with Google or Apple
You can sign in with your email (we email you a code), or with Apple or Google. With Apple or Google, we receive from them only your account's ID and your verified email address, never your password, name, contacts or other data, and we check it on our own server: no other company keeps a list of your sign-ins for us. If you choose Apple's Hide My Email, your account uses the private relay address Apple gives us. For Sign in with Apple we keep a token from Apple so that deleting your account also ends the sign-in at Apple.
Crash reports, statistics and notifications
The website, the web app and the Windows app send us no crash reports or statistics.
The phone apps (Android now, iPhone later) use Google Firebase for three things, each under your control in the app's Settings, Privacy:
- Crash reports (Firebase Crashlytics), on unless you turn them off: when the app crashes, a report of what failed, with the device model, system version and a random installation ID. It holds no answers, notes, email address or name.
- Usage statistics (Firebase Analytics), off unless you turn them on: which screens are opened, with a random installation ID. We switch off the advertising ID and ad personalisation, and we never use the statistics for advertising.
- Notifications (Firebase Cloud Messaging): if you sign in and allow notifications, your phone's notification token is kept with your account so we can send account messages, for example that your access ends soon. Signing out on that phone removes it. Daily study reminders are set on the phone itself and need no server.
Who processes data for us
OVHcloud (our server, in Canada), Stripe and PayPal (payments), Resend (email), and Google Firebase (crash reports, statistics if you allow them, and notifications in the phone apps). Apple and Google confirm who you are when you sign in with them. Each processes data only to provide its service to us.
Your rights
You can ask for a copy of your data, a correction, or deletion at any time: write to privacy@deanprep.com. Deleting your account removes your progress and devices; we keep order records only as long as tax law requires. If you are in the EU or UK you can also complain to your data protection authority.
Students under 18
Dean's ACT and Dean's SAT are for students aged 13 and over. A parent may buy for a student; the student uses their own account. We collect nothing beyond what the app needs to work, and show no ads.
Cookies
This site sets no tracking cookies. It may store small settings in your browser (for example, a dismissed banner), which never leave your device.