So you’ve made the decision to reboot your diet: Eat healthier, cook more, and—once you download all the necessary apps—live your best food life. But choosing which app is worth your phone’s precious memory is harder than it looks. With new options appearing daily and each one claiming to solve every conceivable dietary challenge, the process can be daunting. “We don’t know of any healthy eating apps that have undergone rigorous evaluation and been demonstrated…