Umami - Simple, fast, website analytics alternative to Google Analytics

Umami is a simple, fast, website analytics alternative to Google Analytics. Umami measures just the important metrics that you care about: pageviews, devices used, and where your visitors are coming from. Everything is displayed on a single, easy to browse page. It is able to track an unlimited number of websites from a single installation. You can even track subdomains and individual URLs.

Umami can be used to host data for friends or clients. Just create a separate account and they can start tracking their own websites on their own dashboard. Its interface is optimized for mobile so you can view your stats from anywhere.