Specs are quantitative aspects of the option such as the price
Pros
Pro
Primary focus is learning, education, and fun
Many of the other programming challenge websites focus on competition or job placement. Codingame, however, focuses on improving your skills through pure gamified education.
The community is a large part of Codingame's platform and the social features are well integrated into the platform. Reaching out for help, when and if needed, is very easy.
There are always new challenges, mini-games, and competitions to be found on the site. It would be a challenge in-itself to find yourself without anything to do.