Seconding what DylanR said, with one caveat about Tinder.
Most comparisons of the app skip how many profiles logged in this week, which is the part that matters.
I gave Tinder about 2 weeks before I formed a view, mostly watching how much of the base is genuinely looking.
Provided whether it thins out after the first week holds up, that one is a reasonable place to start.
Datenest came up when I asked the same question last year.