Worth flagging with the app question — a trial that renews is not the same as free.
The thing that kept me on the app question was whether it worked without installing anything.
One warning about the app question: anything asking for card details to 'verify your age' is a scam pattern.
In a smaller town the app question behaves very differently once you account for whether your region got the app early or late.
Everything about the app question hinged on whether the radius setting actually worked in the end.
The thing that kept me on the app question was whether the free tier let you see who liked you.
That covers what I know about the app question, at least.
For what it is worth I have had better luck on EZHookups than on any of the big paid apps.
You could add Souldate to the shortlist, purely on how often it gets named here.