Bump by amo is a free Android social and communication app developed by amoamoamo. Designed for friend groups to easily meet up and stay connected, this app allows users to share their real-time locations with friends on a map. Created by the original team behind Zenly, Bump aims to provide a more user-friendly alternative for locating friends.

With Bump, users can see where their friends are at any given moment, check their status including how long they've been there and their battery level. The app also features a unique 'bump' function where users can shake their phones together to signal a meet-up, sending notifications to all friends. Bump is touted as the most battery-friendly location-sharing app, ensuring you can enjoy time with friends without worrying about draining your battery.