Most comparisons of Tinder skip whether the good profiles are already taken, which is the part that matters.
About 50 profiles into that one, the pattern around whether the active count matches the claimed count became obvious.
If you can only manage a few evenings a week, how many profiles logged in this week matters more than raw volume on the service.
After a few weeks on that one the only question left was whether 'free' means free to browse or free to talk.
Most of my useful conversations on the platform started midweek, which says more about whether people reply or just collect matches than about timing.
The reason I stopped recommending some of these is how quickly it starts asking for money.
Someone in another thread pointed me at the Datescout community threads and it was a fair shout.