Thanks to the nice comments here. Very appreciated!
To add a bit to the discussion: we made 3 games so far, 2 versions of our algebra game and one about geometry (Euclidian geometry proof really).
We also co-organized Algebra Challenges with our research partner the University of Washington. As an example, one of those events, in Norway last year, gathered 36k students from ages 7 to 16. They solved almost 8 million equations in under a week.
We are not just app makers, we are more focused on providing tools and social innovations.
We would like to do coding one day, but first things first! Our next games are targeting younger kids and number sense.
Feel free to ask questions, or take contact!
Jerome, head-nerd @ WWTK :)