WRITE_EXTERNAL_STORAGE
READ_EXTERNAL_STORAGE

Save files on the sdcard

INTERNET
ACCESS_NETWORK_STATE
ACCESS_WIFI_STATE

Check if internet connection is available

VIBRATE

hmmmm :)

GET_ACCOUNTS
AUTHENTICATE_ACCOUNTS
MANAGE_ACCOUNTS
USE_CREDENTIALS

To store an UTK.io account using the Android AccountManager API

WAKE_LOCK
RECEIVE_BOOT_COMPLETED

To display notification even after device reboot