Digital diary studies are a cost-effective, flexible, time-saving alternative to in-person, contextual, field research. Using remote UX tools (like Dscout or WhatsApp) on their mobile devices, people anywhere in the world self-report their in-the-moment activities, thoughts, and feelings around the topic of choice. Smart kitchens? Autonomous cars? A new streaming service? The list goes on. These longitudinal studies last anywhere from one week to a few months. Learn how to research using digital diary tools, micro-surveys, remote interviews, and activities to uncover rich data and keep participants actively engaged.