I'm looking for an application that will let me easily export any application I have to APK format (I'm not rooted). Normally, AirDroid does this easily and I love AirDroid for that. However, one of the downsides was that I need to be around a computer to do the said process. Are there any apps that offer a way for me to output the APK file from within the Android itself? I can see that some backup solutions provide this but I don't want a whole new backup system just to do this one small task. A small utility app of sorts would be really nice which has only one purpose and that is to produce the APK file.
Backup apps using Astro File Manager.
Alternatively, you can use a little app dedicated for this task: App Backup & Restore.