Zenly - Zenly is a GPS tracker to locate your friends in realtime.
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Live Location in Messenger - Share your location with your friends right in Messenger
Capture - A great free screen capture utility that allows you to capture either a window or the desktop and save it to either a file or the clipboard.
sup - The first creep-free way to see nearby friends
Babble - A more personalized social network