GEM Client is an all-in-one mobile client that includes Alert, Panic, and Check-In features that work in conjunction with Genasys' critical and emergency communication platform: GEM Enterprise, an emergency communications solution that is purchased by an organization to protect its employees, contractors, and visitors. The app functions only when you register with at least one organization using the GEM Enterprise solution that you wish to be associated with. The organization will inform you how to register.