The legal cannabis industry is very new and constantly evolving. New local regulations are frequently introduced and app store policies are unclear. Over the past two years, we at Eaze have leveraged React Native for rapid development and iteration of our mobile presence. Our fleet-management app used by our delivery drivers as well as our consumer app have taken many forms and seen several complete re-architectures. This talk covers the evolution of our mobile applications, the advantages and shortcomings of using React Native in a grey market industry, and the solid technical solutions that we have implemented over the long term.