Abstract: A sponsoring brand may provide an application for mobile devices that allows users to take pictures of competitor advertisements and that provides responses to any assertions found in the competitor advertisements. The application may instruct a user to capture an image of an advertisement. Various types of detection and/or recognition components may be used to analyze the image to detect and recognize assertions, logos, and other objects or characteristics. The application then displays the image, and also displays responses or commentary relating to any assertions, logos, objects, or characteristics. The responses may point out errors, exaggerations, misstatements, deceptive statements, etc., and may also contain information that promotes the sponsoring brand.