Privacy notice for parents and guardians
NumbaFox is a maths practice app for children. This page explains, in plain words, what information NumbaFox uses, why, and who can see it.
Contact: for questions, or to see or delete a child’s information, email martinssego@gmail.com.
Address: NumbaFox, 144, Seliat Bus-stop, Egbeda-Idimu Rd, Lagos, Nigeria.
Address: NumbaFox, 144, Seliat Bus-stop, Egbeda-Idimu Rd, Lagos, Nigeria.
What we collect
- Account: an email address and password (handled by our sign-in provider, Supabase), the child’s first name and the first letter of their last name.
- Learning progress: which maths facts were practised and how well, practice days, quiz scores and times, badges and the chosen study buddy.
- Voice: when a child answers by voice, a short recording is sent to OpenAI to turn it into text. Recordings are not stored by NumbaFox. When credit billing is enabled, a transcript may be temporarily retained to make retries idempotent; it is no longer available for replay after 24 hours and is cleared on the next billing activity.
- Homework helper: homework photos and messages are sent to OpenAI to give step-by-step help, with storage switched off. Photos are not stored by NumbaFox. With Tutor Credits enabled, delivered tutor replies are retained for retry recovery for 24 hours, then cleared on the next billing activity. Every message and photo also passes OpenAI’s safety check.
- Billing: Paystack processes payments and receives the paying account’s email. We retain payment references, plan membership, credit balances, expiry dates and usage records. We do not receive or store card details. A Family plan owner can see members’ names and credit usage, but not their homework conversations.
- The fox’s voice: to say “Welcome back, Ada!”, the child’s first name is sent to Microsoft Azure to make the sound once.
Who can see it
- Other students can see the weekly quiz leaderboard: first name, last initial (for example “Ada O.”), score and time.
- A teacher can see the progress of students who join their class with a class code.
- We do not sell information, show adverts, or share it with anyone else.
Where it is processed
NumbaFox is hosted on Netlify. Accounts and progress are stored with Supabase. Voice and homework help use OpenAI; the fox’s recorded voice uses Microsoft Azure. These services act on our behalf.
Keeping it safe
- Each child can only see and change their own progress; quiz answers are checked on the server.
- The homework helper only discusses school work, never asks for personal details, and tells a child to talk to a trusted adult if something is wrong.
- Progress is kept while the account exists. You can ask us to delete an account and its information at any time using the contact above.
Your consent
A parent or guardian must agree before a child uses NumbaFox. You can withdraw consent at any time by contacting us; we will then delete the account.
Last updated: 7 October 2026. This notice is a plain-language summary; please review it with someone who knows the data protection rules that apply to you (for example Nigeria’s Data Protection Act 2023).