I am getting started with mobile apps development, but there are so many tools available to develop cross-platform apps, so I am really curious as to what was used to build certain apps.
Basically I would like to know if there is something like PEiD, but for mobile apps, or if there is an easy way to find out what was used to create a certain app I've downloaded from Google's/Apple's App Store (i.e. some sort of file or information inside the apk file).
EDIT
After searching a bit more I found this, which may work in a few cases: decompiling DEX into Java sourcecode
For instance, I decompiled one game that I had on my Android smartphone (and on my iPad) and found Cocos2d framework inside it.