How to Use a Seed Phrase (newbie question)

How do I access (or just check on) my bitcoin using my seed phrase alone? I've downloaded several different wallet apps but had problems with all of them. The Bitcoin.com app gives me options to purchase and receive bitcoin, but I don't see any "import" or "seed phrase" options. Binance wouldn't let me do a thing without going through a very serious verification process involving scanning all kinds of sensitive documents. And Ledger wanted me to choose a completely separate device for... something I didn't understand. I know this is a dumb question and it's probably really obvious but right now I'm at a loss. Is there an app that will just let me put in my seed phrase??? (It's a tiny amount of money, so it won't be a big deal if I can't access it, but still I'd like to be able to if it's possible.) Thanks.

UPDATE: Thanks for the replies. It seems it's quite a bit more complicated than I thought. I'm going to get a friend to help me in person. Thanks for the help and for the warnings about scammers. (And to would-be scammers: It's like 200 dollars. Don't waste you time!)