Ubiquitous fitness, health and dating apps ask us some very personal questions. Who do you really want to know about your private life and health? Your partner? Family? Friends? Doctor? Google? How much do we really share with technology companies? Fitness, health and dating apps such as AppleHealth, GoogleFit, Clue, Flo and Tinder are increasingly demanding our data in return for services. Should you answer them? Anthropologist Dr Giulia De Togni (The University of Edinburgh) asks what price we are willing to pay for "better" health and wellbeing.