Is Apple Pay widley used in Budapest

I was there May 2019. I was able to use a credit card in all the restaurants I went to. I did not try Apple Pay. Didn’t do much shopping so can’t help with that. Ticket machines for the tram and busses took credit cards too. If you get a transit pass do keep it on you as they definitely check.

I had some cash on me as back up and really didn’t need it. Used up much of it for the taxi ride to the airport and getting breakfast there.

We were just there and I didn't see Apple Pay as an option at all.

We got $100 of currency from an ATM--it came in handy. Change bureaus are everywhere if you are concerned about unused cash. Some restuarants didn't take cards. Only cash.

I dont even understand apple pay, but I see a lot of people "tapping" their cell phone to pay.
I dont know why you wouldn't get forints? Backup cash is just sort of wise and I rarely walk around without 10 or 15 thousand in my pocket (roughly $30 to $40). Sometimes its just easier to hand a bill and smile. But generally i would say 95%+ of any place you as a tourist will come into contact with will take your credit card and 99%+ of those are tap card machines.

I use Apple Pay in Ireland and it worked out great. I kept my credit card in my money belt and never had to take it out.

Yes, ApplePay is accepted in Hungary. On our most recent visit (Sept 2022 ) I paid with my phone or watch on occasion.
Tap-to-pay is the standard method of card payment at virtually all vendors.

I second the recommendation to having some cash with you. Simply find a bank-owned ATM and 0 in HUF. get $10