Phone is a smart dialer application that helps users fight spam calls by reporting them to the authorities. The app is designed to be privacy-oriented and does not rely on personal information from its users. Unlike other caller ID apps, Phone does not harvest contact information from its users to provide caller identification.

The app supports "Unknown Caller Blocking" right out of the box, allowing users to reject calls from people not on their contact list. Phone also adds a bit of fun to the phone experience by assigning randomly generated avatars to contacts and calls. The app automatically places frequently called contacts in a "Circle" for one-touch calling and reminds users to stay in touch with their Circle when they are falling out of touch.

Phone does not send any information over the internet and promises to keep user data safe. The app also allows users to create "Temporary Contacts" and "Temporary Numbers" that get automatically deleted after a set period. Phone supports multiple features such as DateMinder, Block Contacts from Call History, and Switch SIM while placing a call, which makes it a must-have app for Android users.