I want to know when a user goes close to a specific area so the app can show them deals. Is there a Mappedin version 5 service that can notify the user when they are at a certain location?
Yes there is!
As the user moves you can obtain their current location and then poll the Mappedin SDK to find the nearest node. Your app can then check if that nearest node matches a location of which you want to display an alert.
We actually have a blog post that discusses this scenario here: Promoting Key Locations Along a Path