The Wear-IT application and the associated framework are designed to allow researchers to minimize the amount of effort that a study requires of its participants. Featuring real-time responsiveness and adaptive, context-dependent assessments and interventions, Wear-IT uses passive data collection approaches in combination with active, low-burden surveys to balance participant effort and hassle against the quality of the data available. Wear-IT can be installed on participants' own phones, and integrates with wearable and emplaceable devices from a variety of manufacturers. Wear-IT is designed with participant privacy and burden at the forefront, and is built to open new opportunities to understand and improve people's day-to-day lives. Wear-IT can be tested by anyone, but requires ethical oversight from an institutional review board to be used in scientific studies. Contact the developers to collaborate or participate!