There are scads of travel apps out there that help us navigate unfamiliar territory, find suitable accommodations, discover trendy eating and drinking spots, or plan a tourist agenda. But the new Stockholm Sounds app (free on iTunes) allows the user to uncover the secrets of the city though sound related games tied to dozens of locations around town.

Travelers also get Stockholm music playlists and private access to secret sound installations around Stockholm created by artist Håkan Libdo. Local clubs, bars, restaurants and hotels will be periodically posting discounts and freebies only accessible via the app. Bets of all, the app doesn’t require wifi or data roaming to work.