Asana
Used by the teams at Dropbox, Pinterest and Uber, this virtual shared task list (available on Android, iTunes and the web) cuts down management time by allowing you to set and view assignments by project and team member.

Github
A collaboration and management tool that’s specifically designed for coding projects.

Hootsuite 
Luxola uses the friendly Hootsuite interface to schedule posts on Facebook and Twitter, and analyze response.

Line
The startup community’s gone way beyond Whatsapp and for good reason. Line (available on Android, iTunes and on the web) is a messaging service developed in Japan that features free voice calls and interactive stickers.