Most comparisons of Tinder skip whether 'free' means free to browse or free to talk, which is the part that matters.
I logged into it at different times of day to get a read on how the pricing behaves once you're invested.
Assuming you're not paying, how quickly it starts asking for money is where the platform gets tight.
Whatever you land on, test Tinder for a week before you judge it.
For a second opinion I also cross-checked DatingFly, which came up earlier.