Shazam doesn't send any audio from your device -- when Shazam "listens" it immediately processes the sound into a very small digital file called a fingerprint. Fingerprints are matched against Shazam's database of media content. A fingerprint cannot be used to put the original sound back together.
If you have allowed location, Shazam collects information on longitude, latitude and altitude when tagging a song.
This information is also transmitted between the Shazam application and our servers to produce the location-enabled Tag result. Shazam adds location information to tags to help users remember when and where they tagged a song or TV show. Tag location is found at the bottom of the tag below any additional content links. However, it does not contain any personal information which could allow you to be identified.
For more information, please visit Shazam Terms and Conditions.
The following are a few examples of what Shazam collects about your phone:
Country: We collect the country setting to serve you content in the correct language.
Device Type/Screen size: We collect this information so that we present a Shazam result correctly and in the right size.
INID: We give each installation of Shazam a unique ID so that if you close the app and come back later, we can give you a list of your tags and view your historical usage. We also populate your in-app News Feed with content relevant to your music tastes.
Location: We detect your location for a few reasons. We have certain content licenses that allow us to to present images in country X, but not country Y, and our agreements require that we attempt to determine your country. If you turn on location services, then we record and store the location coordinates of your tags, and you can normally see this on each tag result. We also aggregate this geo information with other users' tags to provide trending geographic results and charts - see the Explore section of the app.