Foursquare has created a new notification setting to the check-in service called “Always On.” This lets you keep track of your friends at all times no matter where they are. The new notifications are not limited to geographic location so you will get a notification even if they are across the globe.
To turn on the feature, you will have to visit the profile of your friend and toggle an option that says “Check-in notifications” to “Always On.” Only your friends can receive these alerts. This feature is essential for Foursquare because they need to find ways to keep people engaged and interested in opening the app.
For example, I used to be really hooked on Foursquare because it was “the service” to be on a couple of years ago, but now I spend more time browsing photos on Instagram.