Whitelister (com.chasinglemons.whitelist) on Google Play
Allow your most important family and friends to get through to you when your phone is in silent mode. Simply add your important contacts to the 'Allowed list' and enable the service! All other calls and texts will remain silenced.This is the perfect app for those who like to use their phone's silent mode at night, but worry that they might miss calls and texts from their closest friends and loved ones.