Who is behind Mazio Math? Provider, origins and funding
Who provides Mazio Maths, how the platform is developed and funded, and how schools can check the information on data protection and impact themselves.
In brief: Mazio Maths is provided by MatheZeit UG (haftungsbeschränkt). Mazio Maths was developed from mathematics education research, is an independent offering and is in use in regular lessons at several hundred schools in Germany. Mazio Maths is funded through licences obtained by schools or school authorities; Mazio Maths is free of advertising and in-app purchases. The data protection agreement and the checklist are public, so that schools can check the information themselves. Mazio Maths was tested in a randomised controlled study at primary schools.
Before a school introduces a learning platform, school leaders, staff and parents rightly ask who is behind it. This page answers that question for Mazio Maths and shows which documents schools receive for their own review. As of November 2026.
How schools can recognise a trustworthy provider
For any learning platform, it is worth looking at the same points. The list can be used for any provider.
| Question | What to look for |
|---|---|
| Who is the contracting party? | Full provider details in the legal notice, a data processing agreement with exactly this company |
| How does the provider earn money? | Clearly stated costs; information on advertising, in-app purchases and sharing of data |
| Where is the data stored? | Specific locations and service providers in the contract, no generic wording |
| Where does the content come from? | A description of who develops the tasks and how they are checked |
| What is known about impact? | A study with its method and a link, more than user numbers |
| How easy is the provider to reach? | A way to get in touch, help for teachers, answers from people |
You will find a detailed list for the data protection review in the article Data protection checklist for maths apps (in German).
Who provides Mazio Maths
Mazio Maths is provided by MatheZeit UG (haftungsbeschränkt). It is the contracting party for schools and processes the children’s data on behalf of the school and only on its instructions. The school remains the controller. The full provider details are in the Mazio Maths legal notice.
Mazio Maths is an independent offering. Teachers register directly on the website, create their class themselves and do not need access via a state or national learning platform. Mazio Maths is in use in regular lessons at several hundred schools.
How Mazio Maths is made
Mazio Maths was developed from mathematics education research and is made by people working in mathematics education, design and software. The work is organised into areas that are presented on the Team and jobs page.
- Mathematics education. Each unit is a learning path. For each one, the team sets out the order in which ideas develop, which representations help and at which points children often form misconceptions. New tasks are trialled and evaluated in test classes and checked before release. Feedback from lessons feeds into revisions.
- Interactive tasks. Children reflect shapes, find rectangles or read charts directly on the tablet. Every task has variants at several levels of difficulty and feedback that matches the answer given.
- Design. Each unit is set in its own world with places, characters and a cover. The learning assistant Mazio accompanies the children.
- Software. Mazio Maths runs in the browser and as an app for iOS and Android. Hosting, maintenance and updates are handled by MatheZeit UG (haftungsbeschränkt).
- Languages. Alongside German, the website is available in English, Danish, Norwegian and French.
How Mazio Maths is funded
Mazio Maths is free for teachers. To use it with the children, the school obtains a licence, either for individual classes or for the whole school. Schools and school authorities request a quote, and Mazio Maths prepares one for them.
Mazio Maths is free of advertising, in-app purchases, paid extras for children and trackers. The children’s data are used solely for the school’s teaching.
How schools can check the information themselves
Mazio Maths makes the documents openly available for the school’s review. This is how school leaders and data protection officers typically proceed.
- Read the checklist. The data protection checklist for schools (in German) follows the guidance of the German data protection supervisory authorities on learning platforms and gives, for each answer, the relevant passage in the data protection agreement.
- Look at the documents. The data protection agreement version 1.2 with six annexes, the privacy policy, a letter to parents and a short version for children are public. On request, schools receive, among other things, the provider’s data protection impact assessment and evidence from the service providers. The Documents for schools (in German) page shows which document belongs to which step.
- Check where the data is stored. Mazio Maths stores and processes children’s personal data exclusively in Germany.
- Check the contract. Once the agreement is concluded, the school receives the contract PDF with an electronic seal and a qualified timestamp. Under Verify a contract (in German), anyone can check whether a contract PDF is genuine and unaltered.
- Try it yourself. A teacher registers for free and opens the content as a child sees it. What the teacher does there is not counted as a result.
What is known about impact
Mazio Maths was tested in a randomised controlled study at primary schools. What was examined is set out on the linked page.
Teachers’ experiences
Teachers who took part in the scientific study describe their experiences as follows. The quotes are verbatim, translated from German.
- “The pupils practise in a meaningful way, they enjoy it, and it makes preparing lessons and diagnostic assessment easier.” (Teacher in the scientific study)
- “With Mazio Maths I can quickly bring topics into lessons that often get pushed aside (geometry, measures).” (Teacher in the scientific study)
- “We teach mixed-age classes. I often use Mazio Maths when I want to explain something to one group (grade 3 or grade 4); the other group then works on related topics that I highlight. They work so quietly and with such concentration.” (Teacher in the scientific study)
What Mazio Maths is designed for
Mazio Maths is designed entirely for maths lessons in primary school. Trials, the data protection agreement and licences are currently offered to schools in Germany. Teachers in other countries can register; registration records their interest, and we will let them know as soon as Mazio Maths is available there.
Frequently asked questions
Who is behind Mazio Math?
MatheZeit UG (haftungsbeschränkt). It developed Mazio Maths from mathematics education research, runs the platform and is the contracting party for schools. The full provider details are in the legal notice. The team answers enquiries personally via info@mathezeit.de or the contact form.
Is Mazio Maths trustworthy?
Check it against the public documents. The data protection agreement, the privacy policy and the checklist with references are public, schools receive a quote with the costs on request, and Mazio Maths is free of advertising and in-app purchases. Mazio Maths was tested in a randomised controlled study at primary schools.
Where can I find experiences with Mazio Math?
Verbatim quotes from teachers in the scientific study are on this page and on the Mazio Maths for teachers page. You can form your own view by creating a free account yourself.