Simplytics is a reasonably priced alternative to services like Plausible. It was created out of a need to not bombard users with pop-ups but still wanting to get reliable analytics and data.

The most basic web analytics to ever exist. But with a few twists: No option to not have your web analytics public, no sign-up and no payments. Free, GDPR compliant and cookie-less. To make it sustainable to run for free, data is only kept for 10 days.