Mobile games usually get a bad rep as they’re usually asset flips and/or MTX-ridden and/or ad-filled, etc., and I’m sure this is actually the case for most games on the app/play store. But are there any ones that are actually good, maybe just something to pass the time with?
Slay the Spire: it’s the same game as on PC or any other medium. Fantastic game. Obviously costs the same as other places (about $10), but well worth it!
Pokemon TCG Pocket. I started early with this, so I have had no problem with being F2P, but I’m sure that late adopters would need to pay some amount to become competitive. Still should be playable F2P, though. Anyways, it’s amazingly unintrusive when it comes to real money transactions. No interrupting ads and you basically have to search for the in-game shop to find the microtransactions.
Roller Coaster Tycoon Classic. This one might have changed since I got it ~8 years ago. It’s a pretty good mobile version of the original game. I’ve spent a lot of time with this game.