I don't think this is true, but it does sound that way from the way they explained it. Your app may be targetting a certain demographic, but you can start mark

I don't think this is true, but it does sound that way from the way they explained it. Your app may be targetting a certain demographic, but you can start marketing heavily in a certain niche. Facebook and Harvard students was the example he used. But a lot of the location based services start in one city and then expand. Groupon and Foursquare are examples of this.