C++ is an object oriented programming (OOP) language, developed by Bjarne Stroustrup, and is an extension of C language. It is therefore possible to code C++ in a “C style” or object-oriented style.
Since C++ is rather lower level, the language is huge and you will need to handle a lot of complex things such as memory management and more. You also need to write a lot of code before you can get a working prototype if you’re planning on building an app from scratch. Since it will be difficult to grasp how all features in C++ works, you can easily shoot yourself in the foot.
C++’s greatest strength is how scalable it could be, so apps that are very resource intensive are usually built with it. Graphics require a lot of resource, which is why the most beautiful 3D games you happily feast your eyes on are often built with C++.