Is there any way to use the iTunes API to lookup information based on the unique app bundleId? I have an iphone app, I want to use the API to check to see if the user has th
You can use a bundle id with Search API. Just replace id with bundleId, like following:
http://itunes.apple.com/lookup?bundleId=com.facebook.Facebook
EDIT: As @Roman Blachman stated, the country code logic has changed. If you want to limit your results to a specific country, use the following example.
http://itunes.apple.com/lookup?bundleId=com.facebook.Facebook&country=us