Interact is a geo social application which is designed to do just that, interact based on location. To participate with the application the user needs the latest version of the iPhone Facebook application and to allow the application to link with Facebook. The application uses your Facebook information such as connections and likes to determine mutual connections and interests between people.
The application is designed for people to meet other people who are in close proximity and have common interests. The screen shows all of the people who have common interests by rank within a given location. The radius of the person can be determined by a dimmer like switch which goes from a radius of 25 feet to the entire universe of most compatible users. The pictures of the people are large enough to that you get a clear idea of who they are. The app has the feel of who can I talk to today, and gives the user the opportunity to open up a SMS chat conversation. In addition the user can filter based on the type of interaction they want: any, dating, social or professional.
Interact is good for meeting people in social situations. Some people have mentioned that it can be good for remembering people names if you see them in a particular location. One drawback in creating an audience is the lack of Android support which encompasses a huge demographic who would find this application useful. Android support will be needed to give this application its full potential.
The other potential use case for this application is business situations and the company is planning to offer LinkedIn support. Right now growth in the application is via word of mouth. The app might not be for everyone. To make the application more privacy friendly the app designer interviewed women who are more particular in types of interactions they have and in displaying location. One of the incorporated feedbacks was to not include a map, which is a nice feature and allows for a degree of anonymity.
If you want to find out more about the thoughts on building a mobile geo social application by the founder Anthony Combs, it can be found at http://www.geosocialradar.com/blog/84/a-guide-to-building-location-based-social-networks-philly-tech-week.html. Try out the app you may meet someone that you enjoy interacting with.