If you need to catch a rare Pokemon, the app will notify you when you're next.
You do not need any kind of registration or login.
Data is updated constantly with other users of the application.
Just open the application and then see that Pokemon have near you.
Since Go Live Radar Map is driven by it's community, it's possible that there may not yet be Pokemon locations in your area when you first download the app.
If this is the case, you can go out and mark the locations of Pokemon you've found to help other players in your area. When others view the location of the Pokemon locations you've marked, your trainer name