Mumla is a fork and continuation of Plumble, a robust GPLv3 Mumble client for Android originally written by Andrew Comminos. It uses the Humla protocol implementation (forked from Comminos' Jumble).
Mumla should run on Android 4.0 (IceCreamSandwich, API 14) and later.
There is a small page for Mumla here: https://mumla-app.gitlab.io/
TODO: humla-spongycastle should be built as a sub-project of Humla's Gradle, but currently isn't.
git submodule update --init --recursive
pushd libraries/humla/libs/humla-spongycastle
../../gradlew jar
popd
./gradlew assembleDebug
Mumla's LICENSE is GNU GPL v3+.