How they compare
Both are big names in fetish porn, but they work completely differently.
Kink is a studio: dozens of professionally made BDSM and fetish channels since 1997, known for showing consent and aftercare. You subscribe: $119.99 for three months, $179.99 for six or $249.99 a year with downloads.
Clips4Sale is the biggest fetish clip marketplace, selling clip by clip since 2003, with every niche imaginable and no subscription. Creators keep 60% of each sale. Quality varies a lot from store to store, and it's easy to overspend.