Things - Things is an easy to use task manager.
Taskful - Deadlines, meet your match.
Llama Life - Say goodbye to never-ending lists, and hello to daily bliss
Calendarist - Time blocking companion for Google Calendar
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
Gone - An ephemeral to-do list