Crowdtesting combines 'in-the-lab' and 'in-the-wild' approaches to app testing. It augments traditional QA efforts by testing apps across real devices, locations, and use cases that better represent how users experience apps. This helps close the gap between internal definitions of quality and users' actual experiences. Crowdtesting provides functional testing, usability testing, localization testing, security testing, and load testing through professional, global networks of testers. Tools like the 360-degree app quality dashboard help analyze crowdtesting results alongside other user feedback.