I'm trying to figure out why this site exists, what their business model is, and what they're hoping to accomplish. There's no pricing data available anywhere that I can tell, but it's obviously a company. I'll comb over it in more detail when I'm not at work.
Hi!
* Note that I'm a CodinGame employee, so my answer might be biased.
The business model is mostly based on connecting developers who like to code with companies who are in need of programming workforce.
We host online programming contests on our platform (there's actually one coming up on saturday) and depending on your performance (so, anonymously), you can land a job at one of the sponsor companies.