As a conventionally unattractive guy (short, non-white), Tinder has been abysmal for me. Match rate of 2/500 swipes, back when the auto-swipe apps worked. And then most of the most matches were horrifically unattractive. OkCupid produced vastly higher quality matches for me, probably because the profile text and questions let me expand on my personality more. I used the same photos on both profiles. Tinder seems only useful for conventionally attractive men. I have
never gotten a Tinder match who was remotely more attractive than me, but I had plenty on OkCupid and a few on Bumble.
Also, regarding the shirtless selfie. It's highly effective for men who have muscles: http://blog.okcupid.com/index.php/the-4-big-myths-of-profile.... This is in line with the old male chestnut "what women say they want is not what they want," women strongly side toward only vocalizing preferences that reflect well upon them.