If your phone is getting slower or getting hanged or you are getting Low internal Memory while installing the applications on your android phone. It means your phone's internal memory is getting filled up to full. And this is the time to move apps to SD Card from internal memory.
Most of the Mid-Range Android Phones today are shipping with 4GB internal Memory. And whenever we install Apps on Android 4.0+, applications are by default installed on Phone Memory and later on, it has to be shifted to SD Card. But still few application refused to move to SD Card. In such scenario, it is advised to ROOT the phone and then you will be able to move the Apps to SD Card. Rooting of Android can end the Warranty of your phone. But before this, you can try the following solution which can enable your phone to move Apps to SD Card: -