General question

Question

After gaining which level one can able to make apps and games in C++?

Answer 1

SoloLearn teaches us the basics, you should understand that it takes much more than that to develop apps and games, especially using C++.

Level in SoloLearn doesn't necessarily depict one's skill and/or knowledge. A person of a lower level may possibly be a pro outside SoloLearn. On the other hand, a person with higher level may not be. Levels in SoloLearn probably be a learning motivation booster rather than a skill charts.