dark mode3 react native3 ui kit3 wallet integration3 blockchain wallet2 crypto wallet2 cryptocurrency app2 digital payments2 fintech app2 mobile banking2 modern ui2 multi-currency support2 secure transactions2 send and receive crypto2 chat interface1 clean design1 expo1 freelance1 gig posting1 job listings1 light mode1 messaging1 onboarding screens1 profile management1 rating system1 react native cli1 responsive layout1