The Chase Pay App is tied into your Chase Credit Card(s). Once logged in, it is easy to figure out.
Personally, I prefer using Android or Samsung Pay. They are more seemless and support many credit cards.
There are ways to tie gift and other cards into the pay apps. There are also benfits that are app specific.
My posts are solely based on my opinions and for my entertainment, contact a professional if you need real advice.
When you get in debt you become a slave. - Andrew Jackson