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"Fly Delta" is a free app available for users of phone and tablet products running on Apple (NASDAQ: AAPL ) , Google's (NASDAQ: GOOGL ) Android, Microsoft (NASDAQ: MSFT ) , and Research In Motion (NASDAQ: BBRY ) operating systems. The attorney general's suit alleges that the app, which has been in release since "at least" 2010, collects "substantial" personal information, such as full name, frequent flyer number and pin code, and location.