What programming languages was used to make this all

Question

hello, I am making a past questions app for wasses/waec students in Africa in which they will.be answering questions and play some little fun educational games so they can prepare for their exams properly...well, I also want to add a feature in which they can also submit questions to be added and also ask questions and do something like challenges with others, that is why I want to ask what programming language was used for the challenges and posting questions only, not the user interface.u already did tha

Answer 1

you can use qt library for gui or other..