Health apps and activity trackers are a booming market. Last year over 3 billion health apps were downloaded across the world. It is widely believed that new technology will further improve these tools. From sensors that generate data to algorithms that interpret it. But how do we, as consumers, use this technology? To shed light on this topic, researchers from imec - SMIT - VUB and the imec.livinglabs team carried out a large-scale survey.