Anyway to install gnome-pomodoro on ElementaryOS. I really like their feature. I found this: Is there a countdown timer application for elementary OS? but this does not really have the feature I like.
No, it won't work. The basic reason is that it's designed to work with the GNOME desktop environment and elementary OS uses Pantheon instead.
If you go to install it, it'll ask you to install a slew of GNOME-related dependencies. (It installs as
gnome-pomodoro even though its install is
sudo apt-get install gnome-shell-pomodoro.) The settings will open, but I wasn't able to start the timer. This would be a nice app for someone to port to the elementary AppCenter. (Do note that Tomato already exists as a elementary OS-specific app, though it's not in AppCenter yet.)
It should work if you download it for Ubuntu. elementary OS is based on Ubuntu 14.04 so most programs also work on elementary OS