Acceptance and Usability of an App Promoting Healthy Behaviours Amongst Young Women at Increased Risk of Breast Cancer

Aims 1. To assess the acceptability and usability of the app to young women at increased risk of BC 2. To assess the feasibility of study procedures before running a future efficacy study using the app as an intervention Objectives 1. Explore views of users of the experiences during and after using the app 2. Explore views of users on their experience of the two different recruitment procedures (targeted mailshot, or social media, newsletters and websites), and the online consent procedure. 3. Interpret user data from the app including frequency and patterns of use of the different functions 4. Analyse recruitment data to explore how the two different recruitment procedures could be improved for the next study 5. Assemble a list of suggested changes to recruitment and consent procedures, and to the app, to be considered before the next study. 6. Quantify health care professional (HCP) time required for administering the private Facebook chat group, and through e-mail/private message support. 7. Quantify researcher time required for cleaning and analysis of app data.