So we are developing an application that wraps math learning with game mechanics. Right now it is still in the developing stage so it is free and it contains only the pre-school materials. (shape, counting, colors, etc) We are hoping this app can make learning a fun process for the kids.
Here is our official website: https://amath.us/
and here is the download link: https://amath.onelink.me/neyh/bd06b6ff
Right now we only have the Android version. But we are working on it and we will have ios and higher-level courses soon.