I just tried out a cool app for Android users …
DROID-Star lets users login to the Brandmeister DMR system using your DMR ID and presents an interface that is operationally similar to Echolink. You can connect to any TG and then use the on-screen PTT to have a QSO. Works decently well for a beta version. Despite the “D-Star” branding it is a DMR app. Haven’t figure that part out.
Download it from the Google Play App Store.