Children's privacy at Abacus Practice

Last updated: 25 September 2026

Abacus Practice is for children to practise abacus and mental maths. We built it to collect as little as possible.

• No accounts. Children never sign in, and never type an email, phone number, address or school.
• Nicknames are enough. A profile needs only a first name or nickname, an avatar picture from the app and a level.
• Progress stays on the phone unless a parent buys a plan and keeps the online backup switched on.
• Grown-ups only. Buying a plan, opening links outside the app and changing settings need a parent check (reading three numbers written as words).
• Child-safe ads only in the 14 free days. They are G-rated, not personalised and never use the advertising ID. No ads during practice. Subscribers see no ads.
• No chat, no sharing, no social features. Children cannot talk to anyone or post anything.
• No tracking. We do not follow children across other apps or websites, and we do not build profiles for advertising.

Parents are in control

• See, change or delete any child's profile: Parent area > Children.
• Switch off or delete the online backup: Parent area > Progress backup.
• Ask us what we hold, or ask us to delete it: support@aerofluxstudio.xyz. We reply within 30 days.

If you believe a child's information was collected in a way that breaks this promise, write to us and we will delete it.