Other than universal Linux Flatpak package, the latest Pithos Pandora Client 1.4.1 now is available as native .deb package via PPA repository for Ubuntu 18.04 LTS.

Pithos is a native Pandora Radio client for Linux, which is much more lightweight than the Pandora.com web client, and integrates with desktop features such as media keys, notifications, and the sound menu.

1. Open terminal either via Ctrl+Alt+T keyboard shortcut or by searching for ‘terminal’ from app launcher. When it opens, run command:

sudo add-apt-repository ppa:jonathonf/pithos

Type your user password when it prompts and hit Enter to continue.

2. Then install Pithos 1.4.1 in Ubuntu 18.04 via command:

sudo apt install pithos

For those don’t want to add the PPA, grab the .deb package from PPA package page.

Uninstall:

To remove the software, simply run command in terminal:

sudo apt remove --autoremove pithos

To remove the PPA repository, go to Software & Updates -> Other Software.