Google is your friend:
"The Peanut app is a client for HAM amateurs that allows users to connect to the Peanut Server, a reflector where people can meet. Some rooms on the server are connected to DMR and DSTAR/Fusion reflectors. To use the app, users need a valid DMR ID and a Peanut code. Users can register for a DMR ID on the RADIO ID website, and it usually takes 24 hours to validate their callsign. The app is available for Android on Google Play and for Windows 10."