The US Food and Drug Administration recently issued a letter to Biosense Technologies , developer of the uCheck Urine Analyzer mobile medical application, stating that the firm’s product qualifies as a medical device and must have 510(k) clearance in order to be sold in the US. The uCheck app is designed to read urine analysis dip sticks via smart phone camera. In its enforcement letter, the FDA argued that the Biosense app as well as any mobile phone used to analyze urinalysis results together function as an “automated strip reader”—in other words, as a medical device requiring 510(k) premarket notification .