I use to use this app for two workflows.

1. A pomodoro workflow — 25 minutes, with a "tick" noise constantly, and a "5 minutes remaining", and a "1 minute remaining", and a "bing" noise at the end
2. A break workflow - 5 minutes, with a "bing" noise at the end

Worked great for the pomodoro workflow. However, all the alternatives here are just for apps that do filtering of websites an apps, which isn't my workflow of this app at all.