Heer app for iPhone and iPad

Heer is an invite-only app that lets you share your current city and upcoming trips with your friends, so you know whos visiting your home town next or who will be in town during your next trip. Its city-based location sharing is broad enough to protect your privacy yet good enough to bring people together. Heer will encourage you to travel, meet up face to face and explore new cities with your friends. It allows you to create multiple upcoming trips and see who will be in those cities during your planned visits. It will also show you whos currently in the same town as you.