iTunes api, lookup by bundle ID?

Turns out you can use the 'Apple ID' instead of the bundle ID as it is also unique per app. The 'Apple ID' maps to 'trackId' in http://itunes.apple.com/lookup service.

Apple has changed their API, and removed the language code from the URL, so you should only the bundleId for the app you are looking for. For example:

http://itunes.apple.com/lookup?bundleId=com.yelp.yelpiphone

In addition, you can add the country parameter to the query, to get results for a specific country App Store.

For example:

http://itunes.apple.com/lookup?bundleId=com.yelp.yelpiphone&country=de

The description, user rating and other fields might change between different App Store countries.