Plumble is a free Mumble client for Android devices that lets you experience Mumble servers to the fullest. This app is optimized for Android 5.0 Lollipop and comes with a wide range of features, including voice activation, push-to-talk, dual-pane channel and chat with gestures, tablet layout, channel tree view, and draggable overlay.

You can enjoy improved Jellybean notifications, view rich text comments, mute local users, use the recording amplifier, and generate a certificate, import from desktop, and self-register. Moreover, the app supports proximity sensor utilizing "Voice Call" mode, access tokens, push-to-talk "hot corners" toggleable in settings, hardware push-to-talk key support, chat notifications, channel search, private messaging, and text to speech.

Plumble also offers server sharing, public server browsing (with auto-finder), Opus support forservers, admin controls, and image embedding. This app is licensed under the GNU GPL version 3, and the source code is available on GitHub. If you like the app, you can purchase the donate version.