This is the official site for the Munadi App, developed to work under any GNU/Linux, Windows, Android and Raspberry Pi. Currently, downloadable builds are available for GNU/Linux and Android only.
For Ubuntu, or any other distribution that supports Snap packaging, e.g. Mint.
For Fedora, or any other distribution that supports Flatpak packaging, e.g. Endless.
Android version is not fully ready, you can however download the current APK from here.