This is why these technologies never get mass adoption; so many solutions duplicating themselves trying to solve the same thing. Fact is, most users would care less about numerous implementation, they need to be educated just one solution which works fine. Personally I find plus.codes from Google user-friendly. They are already integrated in Google Maps which has over 1 billion downloads. They are free and opensource which means they can be used in third-party apps. Why is someone is reinventing the wheel is beyond me.