When you need to test the server side development via Mobile application in isolation, you can redirect the host of the API over the hosts file in the emulator. By this way, with the same application that users have, you can test the new development before passing it to live servers.    Android Application   I have using GenyMotion  for emulating android devices. You can edit the hosts file in GenyMotion by the following commands, at the third step you need to change `hosts` file then push it emulator.   adb root  adb pull /etc/hosts hosts  adb remount  adb push hosts /system/etc    See the example below, the host of the application is www.morhipo.com which is now hitting the test server. The third step is important, if you don't remount new host file can not be push to device .    ~ adb root adbd is already running as root ~ adb pull /etc/hosts hosts ~ cat hosts ~ echo  "10.1.6.37 www.morhipo.com"  > hosts ~ cat hosts 10.1.6.37 www.morhipo.com ~ adb remount remount...
Not a feature, but the future of an app is under testing.