If a friend checks in nearby, get a push notification

Create custom workflows effortlessly by selecting triggers, queries, and actions. With IFTTT, it's simple: “If this” trigger happens, “then that” action follows. Streamline tasks and save time with automated workflows that work for you.
9 triggers, queries, and actions
You can add delays, queries, and more actions in the next step!
Foursquare is a location-based social networking website. Use Applets to archive and share check-ins, save pictures, and much more.
Notifications work seamlessly on any Android or iOS device with the IFTTT app installed. Get the information you want, when you want it.