PRIME
Privacy notice
Last updated: October 2026. PRIME is in early testing, so this may change. If it changes in a way that matters, I will tell the families using PRIME.
For you, if you are the one playing
- PRIME keeps your first name or nickname, your year group and your progress (XP, levels, which maths skills you are working on).
- If you use Get help, PRIME keeps the questions you work on and your chat with the tutor. Your parent can read it. That is on purpose, so there are no secrets.
- The tutor is a computer program, not a person. It can make mistakes, which is why the sums are double-checked by a calculator.
- If you tell the tutor something worrying that is not maths, it will be kind and suggest you talk to a parent or someone you trust. It also tells your parent.
- Photos you take are only used to read the page. PRIME does not keep them.
- There are no adverts, no one can message you, and nothing you do is shown to other players.
- Your parent can download everything PRIME has about you, or delete it, any time.
Who runs PRIME
PRIME is a private project built and run by Chris, for his son and for a small number of families who have been invited to try it. It is not a company and it does not sell anything. If you have a question or want something changed or removed, email Chris at kyckmedia@gmail.com.
Chris decides what information PRIME collects and why. In data protection terms that makes him the controller of your information.
What PRIME keeps
| What | Why |
|---|---|
| Parent account | Your email address (to log you in), an optional name, and your password. The password is stored scrambled (hashed) so nobody, including Chris, can read it. |
| Child profile | First name or nickname, year group, exam board, GCSE tier, an optional 4-digit PIN (also stored scrambled), and when the parent gave consent. Nothing more is needed, so nothing more is asked for. |
| Progress | XP, levels, skill scores, the kinds of slips made in practice, avatar choices, and The Stash ledger if the real-money reward is used. This is what lets the app pick up where you left off on any device. |
| Help sessions | If Get help or Teach it back is used: the questions worked on, the chat between the student and the tutor (including a student's own explanations of a method and the tutor's verdict on them), how much help was given, the skills involved, the type of mistake, and a flag if the tutor was worried about the student. Parents can read all of it in the Parent tab. |
| Progress history | One small snapshot per day (XP and skill levels), plus simple daily counts such as how often a child said they felt Good, Meh or Not feeling it, took a break, or chose an easier question. This is so the Parent tab can show how a week went. No names or free text are involved. |
| Feedback | One-tap ratings (Rough, OK, Good) after a match or a help session, and any note a parent chooses to send. They help work out how well PRIME is working. Ratings and notes are shown to me as anonymous totals and note text, without names or email addresses. |
| Usage counts | How many tutor messages each child uses per day, so the daily limit works and costs stay under control. |
| Security records | When someone gets a password or PIN wrong, PRIME briefly notes the time and the IP address, so it can pause guessing. These are deleted automatically after about a day. |
Photos. If a photo is used, it is shrunk on the device, sent once to the AI tutor service to read the questions, and then forgotten. PRIME does not save the photo. Only the questions that were read (which the student checks first) and the chat are kept.
What PRIME does not do
- No adverts, no tracking cookies, no analytics, and no selling or sharing of information for marketing.
- No location tracking, no contacts, no microphone, and no social features. Children cannot see or contact each other.
- No profiling beyond working out which maths skills to practise next.
- No nudging children to share more or stay longer. The app has built-in break prompts and daily help limits.
The AI tutor
Get help uses an AI service from Anthropic (the makers of Claude). When a student asks for help, the question text, any photo of the page, their messages, and a little context (first name, year group, exam board and tier, and what the student said they were stuck on) are sent to Anthropic so it can write the tutor's reply. They are not sent any other information, such as email addresses.
- Under Anthropic's published commercial terms, information sent through its business service is not used to train its models. Anthropic may keep it for a limited period for safety and legal reasons. See Anthropic's privacy policy for the details.
- Anthropic is a US company, so this information leaves the UK. Anthropic relies on recognised legal safeguards for that, which its policy explains.
- The tutor is told to never give the final answer to a question, to keep to maths, and to stay kind. A second automatic check looks at each reply before it is shown. The tutor can still get things wrong, so school work and teachers come first.
Who else handles information
- Cloudflare runs the website and stores the database (in Western Europe). Like any web host, it sees IP addresses to keep the site secure and running.
- Anthropic for the tutor, as above, and only when Get help is used.
- Google Fonts supplies the text styles, so loading a page shares the device's IP address with Google. No account information goes with it.
PRIME does not share information with schools, advertisers, or anyone else, and each family can only ever see its own children's information in the app. As the person who runs PRIME I can technically see what is stored in the database, but I only look at it to fix a problem or if you ask me to. The only thing I look at regularly is the anonymous feedback totals above.
Cookies and storage on your device
PRIME uses one cookie, prime_session, which keeps a parent logged in for up to 30 days. It also stores a copy of the child's progress in the browser so the app works when the connection drops. Both are strictly necessary for the app to work, so there is no cookie banner. Logging out clears them from that device.
Why PRIME may do this
PRIME collects information on the basis of parental consent. A parent or guardian creates the account and ticks the consent box when adding a child. A parent can withdraw consent at any time by deleting the child's profile or the whole account.
How long PRIME keeps it
- Until a parent deletes it. Nothing is deleted automatically except the short-lived security records above.
- I plan to tidy away long-unused testing accounts. I will contact the parent first where I can.
- When a profile or account is deleted, its progress, help conversations and usage counts are removed from the database straight away. Cloudflare's database keeps short-lived safety backups, so deleted information can remain in those for up to about 30 days before it disappears for good.
Your choices and rights
Parents can, for each child, in the Parent tab → Account and data (asks for your password first):
- See it: read every help conversation, and see skills, help counts and mistake types.
- Download it: a file with everything PRIME has about that child.
- Delete it: remove one child's profile, or the whole account.
- Limit it: set or switch off the daily number of tutor messages, and set or remove the child's PIN.
You can also email Chris at kyckmedia@gmail.com to correct something, to stop using information, or to explain how it is used. In UK law you have a right to access, correct, delete and move your information, to restrict or object to how it is used, and to withdraw consent. If you are unhappy with the answer, you can complain to the Information Commissioner's Office at ico.org.uk.
Keeping it safe
Connections are encrypted, passwords and PINs are stored scrambled, and each family can only see its own children's information. Exports, deletion, PIN changes and the Parent tab ask for the parent's password again, so a child using a parent's logged-in device cannot reach them. No system is perfectly secure, but it is built with that in mind. If something ever goes wrong with your information, I will tell you.
Changes
If this notice changes in a way that matters, I will tell the families using PRIME. The date at the top shows the latest version.