Privacy
Last updated: [DATE] · ICO registration number: [ICO REGISTRATION NUMBER]
The short version (for students)
- You don’t need an account. Without one, your progress stays on your device and nobody else sees it.
- If you make an account, I keep your email (so you can sign in), the name you pick, and your practice progress. That’s it.
- Your teacher only sees your name and marks for their class. A parent only sees your progress if you give them a code.
- No adverts. No selling your data. No tracking you around the internet.
- You can delete your account, and everything in it, whenever you like.
Who I am
TamzMaths is run by Tamzid Choudhury, a sole trader based in Cardiff. Email: hello@tamzmaths.co.uk.
Using TamzMaths without an account
Practice progress, your first name if you give it, streaks, badges, practice paper scores and daily challenge results are saved only in your own browser. None of it is sent to me. Clearing your browser data removes it.
Progress codes and report links: the progress is written inside the code or link itself and isn’t stored on any server. Anyone who has it can see what’s in it (first name, scores, skills ticked), so only share it with people you trust.
Homework links and results codes: a results code holds the name you typed and your marks for that homework. It goes wherever you hand it in (for example your school’s Teams or Google Classroom), not to me.
If you make an account
| What | Why | How long |
|---|---|---|
| Email address | To send you sign-in links | Until you delete your account |
| Name or nickname, and account type (student, parent, teacher) | To show your name, and to know which tools you need | Until you delete your account |
| Practice progress (marks, skills ticked, streaks, badges, papers) | So your progress is on every device you use | Until you delete your account |
| Class memberships and homework marks | So your teacher can see the class’s results | Until the teacher deletes the class, you leave it, or you delete your account |
| Ask Tamz questions and any photo you attach (Plus) | So Tamz can answer them | Until you delete your account. Please don’t include names or faces in photos. |
| Parent links | So a parent you chose can see your progress | Until either of you removes the link |
Accounts that aren’t used for 18 months are deleted.
Legal basis: for accounts, providing the service you asked for (contract). For class data, I act for your school, which decides how it’s used (the school is the “controller” and I’m its “processor”).
Under 13? Please ask a parent or carer before making an account.
Live classes (Plus)
Live classes run on a video platform such as Google Meet, Zoom or Microsoft Teams, which has its own privacy policy. Recordings show Tamz’s screen and voice only; students’ cameras, microphones and names are not recorded.
Payments (parents only)
TamzMaths Plus payments are handled by Stripe. I never see or store card details. I keep a record that your account has Plus and Stripe’s customer reference, so renewals and cancellations work.
Beta sign-ups and tutoring enquiries (parents only)
Beta sign-up: your name, email and your child’s school year, used only to contact you about the beta, with your consent (tick box), until the beta ends or you ask me to remove them.
Tutoring enquiries: your name, email, optional phone number, the tutoring you’re interested in, your child’s school year and your message, used only to reply and arrange sessions.
Feedback and ratings
If you rate TamzMaths or send feedback, I receive your rating, your message, which page or question it was about, and your email only if you choose to give it. It’s stored by Netlify and used only to improve TamzMaths and, if you asked, to reply. I delete feedback after 2 years.
Who else handles the data
- Netlify hosts the website and receives the sign-up and enquiry forms.
- Supabase stores accounts and progress, in [SUPABASE REGION, e.g. London (eu-west-2)].
- Stripe takes payments for Plus.
Each one only processes data to provide their part of the service. No adverts, no third-party analytics or trackers, no selling or sharing data for marketing. To know how many people visit, the site counts page views itself: just the page and the name of the website that linked to it (like google.com). No cookies, nothing saved on your device, no IP addresses, nothing that identifies you. Fonts and code are hosted on this site.
Your rights
You can see, correct, download or delete your data. Most of it you can do yourself on the Account page (including “Delete my account”). For anything else, email hello@tamzmaths.co.uk and I’ll act within one month. If you’re unhappy with how I’ve handled your data, you can complain to the Information Commissioner’s Office: ico.org.uk/make-a-complaint.
If something goes wrong: if there’s ever a data breach that puts you at risk, I’ll tell you, and the ICO within 72 hours where required.