Agree with Mia Russell, though Zoosk was a bit worse in my case.
Before committing time to Zoosk, work out how usable it's one-handed on a phone.
Ran the app alongside two other options for a month, tracking whether the search actually respects what you set.
Assuming you're not paying, whether the interface gets in the way is where it gets tight.
My rule for Zoosk now is simple: check how much of your profile is public by default on day one.
Photo quality moved my results on the platform more than anything I wrote, more even than whether the search actually respects what you set.
If this one does not work out, Datescout, which came up earlier covers similar ground.