If I was King, I'd say this is perfectly fine as long as The Match Group ( Tinder's parent) clearly states the pricing tiers somewhere. My personal opinion is most people are better served by deleting their apps and being more involved in their community.
That said, this is downright illegal in most counties. You can't charge people different prices based on protected classes. It's like having a grocery store charge older people more since they tend to spend more time in the store.
Match's former parent IAC just spun them off. I reckon they know it's about to fall apart.
Anyway, I know I constantly meet better people once I went social media free. I'm much happier as well. Life is too short to spend it talking to bots on an app.