Google Analytics - Improve your website to increase conversions, improve the user experience, and make more money using Google Analytics. Measure, understand and quantify engagement on your site with customized and in-depth reports.
EssentialPIM - EssentialPIM is a free Personal Information Manager that keeps up with the times and lets you manage appointments, tasks, notes, contacts, password entries and email messages across multiple devices and cloud applications.
Mixpanel - Mixpanel is the most advanced analytics platform in the world for mobile & web.
Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.
Matomo - Matomo is an open-source web analytics platform
Task Coach - Task Coach is a simple open source todo manager to keep track of personal tasks and todo lists.