Why is it so much more expensive to buy crypto on kraken than Robinhood?

I was gonna post a pic but forgot this page doesn’t support it. This is the current price for one sol at the exact same time across both apps

Robinhood 1 SOL: $201.54

Kraken 1 SOL: $203.90

I kept hearing Robinhood isn’t the place to do crypto things but like. I’m paying considerably more per transaction vs kraken so what’s the deal with that? Sorry if this comes off as bitter or weird I’m really just curious and want to get more into crypto trading.