Best language for app development?

Question

So, I want to start developing an app but I'm not sure where to start or what language should I use. Can somebody give me a clue? Thanks so much (:

Answer 1

java

Answer 2

c# or java.
i think java is better in this case because it is easier to make an android app from java.

Answer 3

Thanks. I would like it to be some kind of productivity application, and if I can make it to run on Android and iOS it'd be cool