Hmmm, there’s no clear line between “acceptable, casual conversation piece” and a “big point in the plot,” so it’s hard to say exactly where yours falls. If it were my story, I’d make it a fake dating app if the MC meets the LI on said app, because that’s the point where the app becomes tied with the story.
For reference, the tale of how my story got reviewed and I was walking too close to trademarked names
My story has 2 episodes that are just a standalone game. One is a fill-in-the-blanks-to-make-a-funny-story game, coincidentally similar to Mad Libs. The other was a trivia game where each question had varying point rewards, where I jokingly referenced Jeopardy. Even though both mentions were brief and somewhat comedic, like “We’ll be playing Jeopar—oooooh, I’d better not call it that, that’s trademarked hehe, let’s call it Epy-board 
” since the reader was actually playing said games, the mention was more than just an off-hand reference like “I like oreos,” it became an actual plot point, and I had to remove all mentions of the coincidentally similar branded names. The games themselves were allowed to stay the same as long as the word was never associated with it.
I didn’t get in trouble, they just asked me to change it and I did.
Moral of this story: if Tinder is more than just a background mention, a brief allusion to the fact that the character has an active dating/sex life, then it could come into the range of being too much.