What skills are needed to create app like SoloLearn ?

Question

What programming languages and other tools/frameworks are needed to create app like SoloLearn ? :-)

Answer 1

Java and xml to build the app.

php and sql for web

thats all .

Answer 2

Java + C#/C++ + XML

Answer 3

PS: You need probably about 1.5 years of experience + Android Studio/OpenGL experience

Answer 4

Thanks guys

Answer 5

java

Answer 6

Cao zeljko, java android spring html css

Answer 7

java and android knowledge for creating app if u are good in php that also help to make a app using html as front-end and php as back-end