This app is specifically intended for study participants based in France for the Bristol Myers Squibb CA055-026 study only. The application uses HealthKit and Apples ResearchKit library to conduct clinical trials. We use Apples ResearchKit library to gather information from participants throughout their participation in the study. We do not use any HealthKit functionality for this study, but it is not possible to remove the HealthKit APIs from Apples ResearchKit library. For more information on the library, see https://developer.apple.com/researchkit/.