Pictastik is a free, location-based photo sharing app that allows users to see what's happening, right now, in the cities around the world. "We organize all the photos, shared by all users, by cities and countries," the company says. "After you share a photo, Pictastik automatically adds your location to the photo you just took... All your photos neatly organized by cities and countries -- super fast, super easy!" This also means that the app does not permit sharing photos stored in your iPhone Photo Library. "We want you to see what's truly happening anywhere, right now," the developers say. "Take a photo, share a photo." Pictastik is available now on the iTunes App Store.