Orchard is a resource that iPhone owners can use not only to appraise their existing iPhones, but also to sell them when the time comes to upgrade, MobileSyrup reports. The used iPhone market is a $14 billion a year business, according to Orchard’s Bruno Wong, with the company aiming to better help interested buyers and sellers involved in used iPhone commerce get rid of or purchase devices. Once installed, the Orchard app will let iPhone owners diagnose the iPhone, objectively measuring the state of certain components including the power button, volume button, headphone jack, cameras, connectivity and sensors, and allowing users to self-diagnose wear and tear issues including scratches on the screen or case. The application will also determine SKU,