LifeTopix

Organize work and life in this complete calendar and planner app. 100,000+ users already do! It's simple for daily agenda, tasks, appointments, reminders, lists...

Commercial iPhone iPad

GTD-Free

GTD-Free is personal TODO/action manager inspired by GTD (Getting Things Done) method by David Allen (see David Allen&Co. official site for more information)....

Free Open Source Mac OS X Windows Linux

mGSD

Features Unlimited contexts No time boxing support 0 Dates 0 Reminders 0 Priority Levels Supports simple projects No support for integration between the...

Free Web

Agenda At Once Free PIM

All-in-one organizer - integrates all your PIM needs in the well-organized interface: to-do list management, time planning, contacts, reminders, recurring options and...

Free Windows

ccToDo To-Do List

Too much to do? Too many lists for too many business and personal projects? Sort them once and for all online at ccToDo.com. ccToDo is the easy, cloud-based to-do list...

Free Personal Windows

GoGetter

GoGetter is a task management system based on David Allen’s ever so popular Getting Things Done methodology. GoGetter will help you stay organized and stay on track of...

Commercial Windows Phone