No app made by sololearn for C programming???

Question

C programming is missing from sololearn's app list!!!
C programming is the first language to study for most of the university students... Sololearn should do something about this!!!

My request!!!
Need a c tutorial app by sololearn on my phone!!!

Answer 1

I know where the course is....!!!
I am taking about the app... As there are individual phone apps for python, java, etc...
There should also be an individual app of C from sololearn...

Answer 2

I am not asking for a compiler or the link to c tutorial inside sololearn app...
I am talking about the learning app...
I am just saying (sololearn) doesn't have an individual c programming app like other programming languages...