Singalong World is an iPhone App provides simulated experience to be surrounded by the "voices of the people around the world sings the same song."
You'll realize the sense that songs connect you to the world people and the splendor of singing songs freely.
See the demo movie: http://vimeo.com/90084812
This is the production version of the App awarded the jury's award in Music Hack Day Tokyo 2014.
How to use: Wear headphones and put a song title in the text field, then you'll hear that the world people are singing the song. Let's face the various direction and you'll find that voices have traveled from the singer's living place.
Details: Singalong World searches cover version performances from SoundCloud and plays them using provided API. Additionally, the voices and performer's photos are placed in virtual space according to their living places by geocoding their country information.
With Family Sharing set up, up to six family members can use this app.