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.

Statsbot - Connect your database, let Statsbot generate data relationships from your database automatically, and get your first insights in a matter of minutes.

Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.

Google Analytics by SumoMe - The easiest way to see your Google Analytics

Task Coach - Task Coach is a simple open source todo manager to keep track of personal tasks and todo lists.

Datadeck - Spreadsheets visualized In two clicks