I have a PayPal account, but I use it only for buying stuff on web sites that don't have the option to pay directly via a credit card. PayPal passes those transactions straight through to my credit card.
We pay the tradespeople who do our yard work and house repairs, using that ancient biodegradable app: paper checks.
Some stores and restaurants around here (small town in the boondocks) now accept Apple Pay and maybe some other apps, but my iPhone 5S doesn't support Apple Pay. When I finally get around to upgrading my phone, I'll have to try that.
Otherwise, I use a credit card for almost everything, except small stuff like a newspaper or small bag of chips at the corner store. I still like to carry $100 or so in cash in my wallet, "just in case."