My rule for whatsapp dating site free group now is simple: check whether the useful settings are buried on day one.
Two of us compared notes on that one and landed in the same place on whether the algorithm is doing anything useful.
Where that one works it works fast; where it doesn't, whether the search actually respects what you set is usually the reason.
That is roughly where I landed on whatsapp dating site free group after a fair amount of trial and error.
Different crowd on Datebound - worth a look, which suited me better.