Terms of use

Purpose. This privately operated service offers supplementary maths practice. It does not replace school teaching, individual educational advice or professional assessment. Materials and automated feedback may contain errors. We do not promise particular learning outcomes, progress, grades or complete coverage of every curriculum or individual learning need.

Price and changes. The app and online service are currently free; there are currently no donations or advertising. Creating an account does not start a paid subscription. Features and availability may change. Any future paid features would require your explicit agreement. Local mobile practice currently works without a mandatory account.

Accounts and permitted use. Registration availability and who may create/manage accounts are explained here: Public self-registration is currently closed. Existing accounts use the permissions configured for the service. A parent account manages its own learner profiles. Guest practice does not require an account.. Keep credentials private and only access profiles you are entitled to use/manage. Do not misuse the service, attempt unauthorized access or deliberately overload it. Child profiles must be managed under the applicable guardian/account rules.

Limits. To protect security, prevent abuse and maintain reliable operation, usage, learner-profile counts, storage and requests may be limited. Current limits: Account use, requests and stored data may be limited for security, service capacity and fair use. Any concrete applicable limits must be communicated. The service does not promise unlimited accounts, profiles, storage or availability. Changes must preserve applicable rights.. Limits may be adjusted with clear notice. Existing saved data and accounts above a new limit need a stated transition; exceeding a limit does not by itself authorize silent deletion or removal of statutory data rights.

Availability and saved work. The service is under active development. We seek to provide reliable saving and resume, but cannot promise uninterrupted availability or permanent retention/recovery of progress. Retention and deletion are explained in Privacy. This does not remove obligations to protect and handle personal data lawfully or exclude rights/liability that cannot legally be excluded.

Contact and updates. Contact info@tamitady.eu about errors, access problems or these conditions. Material changes will be explained before they apply, except urgent protective measures where advance notice is not feasible. Optional payment requires a separate explicit agreement; a general change notice does not create one. Version: 2026-11-06.