VisualCode - QR codes for everything
Unbordered - Unbordered app comes up with features to help you in finding the perfect language practice and exchange partners so you can practice foreign languages right through your mobile phone.
Snapvice - Snapchat tips & tricks delivered once a week
PenPal World - Connect with people all over the world
WaitWho.is - An RSS for people.
We3 - AI that finds you the most compatible people nearby