app2sd = force app to sd card

instructions :- ......................

  1.  First you have to enable USB debugging on your Android device from Settings > Applications > Development > USB debugging.
  2. Now you need to download and install the Android SDK on your computer from Once you’ve downloaded and extracted the package to the folder of your choice, run SDK Setup.exe and click on Available Packages to the left. If you get an error message at this point, enable “Force https://…” in the Settings. From the list of available packages, select “Usb Driver package”, click on the Install Selected button in the bottom right corner and follow the prompts.
  3. Connect your phone to your computer with a USB-cable. Your OS will prompt you to install new drivers. Choose to install them from the android-sdk/usb_driver folder. Do not mount your device; you only need to plug-in the cable.
  4. Next, run a command prompt and navigate to the Android-SDK\tools folder. In Windows, this is done by selecting Run from the Start Menu (or by pressing Win+R) and typing cmd. You change drives in the command prompt by entering the drive letter followed by a colon (:), and change folders with the CD command. For example, to enter the Android-SDK folder, simply type cd android-sdk.
  5. In the Android-SDK\tools folder, type in adb devices and you should get a serial number starting with “H” in return. All you have to do next is entering adb shell pm setInstallLocation 2. Voilà, you’re done! Android will now install apps to the SD card by default.
  6. To switch back to storing software on the internal memory, enter adb shell pm setInstallLocation 0