Discotech - Opentable for nightlife. Tickets, guest lists, and VIP.
Kiwi.com - Find and book the best low-cost flights all around the world
Party with a Local - Party with a Local is a free app that connects travelers with locals that want to party.
Skyscanner - Skyscanner.com compares over 1000 airlines to find you the cheapest airfares, fast.
Partle - Revolutionizing the way people get together
JetRadar - Compare flights from hundreds of airlines & travel agencies