World wide data collection

[tslu69]

Hi, I'm planning to developing a free app where it requires people around the world to contribute. I'm thinking I'm only living in a small part of the world and I can only contribute to areas around me. In order for people to download and use this app, I must at least have some data/information initially to get them started otherwise it is pointless to even download it. How do I go about doing it? Any ideas would be welcome. Of course, I can appeal to my friends.

 

[JammyGitz]

There are already many data harvesting companies. Facebook, Google etc