When it comes to testing apps you have two main options: the Android Virtual Device (AVD) Manager and Genymotion, but which is best? Let’s find out.

The AVD Manager, part of the Android System Development Kit, enables you to create Android emulators as well as SD card images to emulate file access when testing your program.

How to Download the Android OS. If your business has an interest in using or developing Android software, download the source code or a pre-compiled version of the operating system.