StatCounter - StatCounter is a simple but powerful real-time web analytics service that helps you track, analyse and understand your visitors so you can make good decisions to become more successful online.
Metric.live - Real-time and advanced periodic alerts for Google Analytics.
Histats - Start tracking your visitors in 1 minute!
StatsGlitch - Insights and Alerts to grow your business. Powerful Google Analytics and Search Console companion.
Matomo - Matomo is an open-source web analytics platform
Statsbot - Connect your database, let Statsbot generate data relationships from your database automatically, and get your first insights in a matter of minutes.