Of the 38 respondents who had used apps, 10 (26%) reported finding them “extremely useful” in helping them manage their diabetes, 20 (53%) reported finding them “a little useful,” and 8 (21%) “not very useful.” Common reasons included that they were useful for tracking diabetes data, for carbohydrate counting and insulin calculations, and that they were accessible and convenient for managing diabetes on the go. This evidence concerns the gene INS and diabetes mellitus.