Matomo

Matomo’s your fortress if data privacy keeps you up at night. You host it yourself, so no one’s snooping—just you, your campaign stats, heatmaps, and goal trackers, all GDPR-tight. I’ve set it up for a client who ditched third-party risks and still got killer insights. It’s not the flashiest, but it’s steady as a rock and gives you total control. Privacy plus power? Hard to beat.