Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.

PyCharm - Python & Django IDE with intelligent code completion, on-the-fly error checking, quick-fixes, and much more...

Dayblizz - Dayblizz is a social media app for creating, sharing and monetizing content

IntelliJ IDEA - Capable and Ergonomic IDE for JVM

WYA Friends - The fastest way to meet your friends. Create a WYA in seconds – time, place, who's in. Less planning, more seeing each other.

Snapchat - Real-time picture chatting