Bumble is what I like to call Tinder's slightly less creepy younger sibling. It has a somewhat less raw feeling than Tinder — sort of like Facebook vs. Twitter. On Twitter, everything and anything can happen and usually does, while on Facebook, there's occasionally some sort of veneer.
Bumble poses a structural problem for nonbinary peeps: it's designed on the basis that "women message first." On the surface this seems fine, but what does that mean if you're nonbinary? Generally, it still suggests I message first, which feels disingenuous and starts the whole thing off on an awkward foot. I dislike the predication on a binary system.