Terms of Service
Quality, Transparency and Collaboration
A note on the accuracy of our content
Numopia is developed with great care and the commitment to present mathematical content in a way that is understandable, correct and child-friendly. Despite careful creation and regular review, it is impossible to rule out mistakes entirely. This applies both to mathematical explanations and exercises and to how our learning games work, for example when answers are evaluated.
We continuously strive to improve the quality and reliability of our content. Nevertheless, we cannot offer an unlimited guarantee for the accuracy, completeness and timeliness of all content and functions. The statutory provisions on liability remain unaffected.
Getting better together – for children all over the world
Every child in the world should have the opportunity to learn mathematics free of charge, in an understandable way and with joy.
Numopia pursues a clear vision: we want to help make sensible use of the internet as a space for education and to give children a playful access to mathematics, regardless of their personal circumstances. To achieve this goal, we depend on feedback, constructive criticism and the support of our users.
Have you discovered a mistake or do you have a suggestion for improvement? We welcome every hint. Please report incorrect exercises, unclear explanations, wrong game results or technical problems via our feedback form.
We also expressly invite schools, teachers, school authorities, educational institutions and other organisations to get in touch with us if they find mistakes, see potential for improvement or have ideas for the further development of Numopia.
Beyond that, we are open to professional exchange and cooperation in order to further develop the quality of our learning offerings together and to make them accessible to as many children as possible.
Our common goal should be to give children worldwide a free, reliable and motivating access to mathematics – so that they learn with joy, develop their abilities and use the internet sensibly for their education.
Thank you for your support and for helping Numopia become a little better every day.
Verified Agreement · Last Update: May 2026