Google Calendar - Spend less time managing your day & more time enjoying it

C-Organizer - C-Organizer is a robust software tool designed for the professional manager that permits them to organize business activities altogether.

Morgen.so - All-in-one Calendar, Tasks & Scheduler. Morgen is the single hub for everything that revolves around time management.

Info Select - Info Select is a Personal Information Manager that organizes Internet data, notes, to-do's...

Simple Calendar - A simple calendar with events (optional recurring and reminders), week numbers and a customizable...

AllMyNotes Organizer - AllMyNotes Organizer is a multi-functional hierarchical information manager for Windows.