Déjà Vu Photos|旅遊線上App不用買-HotApp4Game

Carry a window into the past. Déjà Vu is a collection of individually-curated old photographs that show the city around you as it used to be, each selected for a specific historical reason. Hold up a photograph taken in the spot you’re standing to peer into the city’s past. Explore New York City, Boston, or Washington, D.C., with new photos added all the time.Déjà Vu uses the fusion of your iPhone's sensors to create an augmented reality experience: your phone’s GPS lets you find the spot the photographer stood, and your phone’s gyroscope and compass spin the photo to the angle it was taken, letting you compare the vintage photograph to what stands in its spot today.A minimalist design puts the photography front-and-center.Whether you're touring New York City or walking to work in Boston, Déjà Vu lets you explore the past around you. Tour the original Penn Station, see the Capitol Dome under construction, or watch Union troops march through Faneuil Hall. Immerse yourself in an expanding collection of vintage photographs across the city.Additional features:• Gyroscope: If you're standing at a photo spot, Déjà Vu can show you exactly which direction to face to recreate the shot. Tap the gyroscope in the corner, and the photo will spin to face the correct direction itself relative to how you're standing. All you have to do is turn and tilt your phone until it matches up.• Contribute: If a photo doesn't have gyroscope data, you can contribute to the database. When you're standing at the "sweet spot" where the photo was taken, hold it up in the right direction and tap the gyroscope to see instructions.• Location-Based Notifications: Déjà Vu can let you know when you're walking by a photo site by sending you a notification. Let Déjà Vu access your location all the time and allow notifications to enable these alerts. Remember that continued use of GPS running in the background can affect your battery life.