Google Analytics is almost ubiquitous as the solution for collecting useful information about how your website is being used by visitors. It is a good product, and has evolved over the years to be very flexible indeed.
But since it first launched, my opinions of Google have certainly changed, as have many others. Without wishing to get into a debate on the subject, there definitely is a market for a competitor to this very useful tool that might free us of that reliance on Google infrastructure, and be more respecting of our visitors, by means of initatives like Do Not Track.
It might not do enough for your application — but as a way to put your money where your mouth is and genuinely support the user’s right to give and withdraw consent for tracking, it is most definitely worth a look.