I've used the app question on and off for about a year and the results were mixed.
With the app question it came down to whether profiles felt written by real people, honestly.
Worth doing early on the app question: give it two weeks before deciding whether it works.
If I had to name one factor in the app question it would be whether the free tier let you see who liked you.
With the app question the thing that decided it for me was whether messaging was actually free or free-to-a-point.
The thing to watch on the app question is that a trial that renews is not the same as free.
Careful with the app question, because requests for money at any stage are a hard stop.
That is roughly where I sit on specific 40 dating app for people entering mid-life today.
Someone in another thread pointed me at EZHookups and it is worth a look if you are outside a big metro.