When you are in a public space, in a street, you might see an homeless with important needs. With DoubleCup you are localized at this moment and with this App you could organize a Call for an immediate Help, with some of your contact (from Social networks), if there are some coffee shops -or other foods- just around you.
You ask for 2 coffee cups (the amount of): one for the homeless, the other for you, for your service for the homeless. Your contacts will give you only a % of these costs, for example 8 $ divided for 8 people. With a QRcode (or NFC) you could pay the shop and share a picture of the homeless with you (if possible) and/or with your coffee.
The profit of the app will be a percentage on transactions.
Only your face and name or nickname (not surname) are shown into this social network, with all your pictures for the helps.