Computer software for use with mobile phones that allows users to effectively manage their contacts, request and populate images of their contacts, customize the size and shape of chat buttons and dial pad, confirm delivery and whether text messages are read, make calls with a touch of a button, send and receive text messages with a touch of a button, group chat, send predefined messages with a touch of a button, create and send custom messages in many languages, share contacts with others, change their number and notify all their contacts, automatically update number changes, backup contacts on the cloud, tag a contact as their emergency contact, place an emergency call to a tagged contact, make emergency calls to summon an ambulance from any country with a touch, create multiple user avatar images, customize do not disturb setting to apply to all but a select group of contacts, notify selected contacts of user's current time zone, notify selected contacts that user is in airplane mode, and display location