Purp - A smart to-do list and goal tracker app
Effortless - Stay focused and beat procrastination on your Mac.
Pixela - Record and Track your habits or effort. All by API.
Planny.co - Planny is lightweight Twitter scheduler. Grow faster with calendar planner, multi account management, advanced drafts and analytics.
BrandBird - Brand your Twitter content uniquely
Day Night - A desktop app that kills the procrastination in you.