Hi I want to clear all applications data(preferences and sqlite) from my phone in one tap.
How can i do this? is there any app which can do this WITHOUT ROOT PERMISSION?
You can try 1Tap cleaner : https://market.android.com/details?id=com.a0soft.gphone.acc.free&hl=en . It works on non rooted devices.
EDIT: Try Clean Master . It scans the memory card for large cache file that you can delete altogether.