For example, most cards have a 2% cash back limit up to $6,000 dollars. There is the Citi Double cash card that does have unlimited but really it is 1.98 percent because you get 1% on every dollar spent and 1% on every dollar paid. However, if you apply it to your statement you have not paid the balance so it really is a bit lower than 2%. Not to mention, you need at least 25 dollars in cash back before you can use it and it expires.

Apple gives the cash back the next day. Which is insane. While Citi takes 1.5 months to give it to you. It is easy to forget about it and one of the reasons why so many people forget and it expires out.

The only exception is travel cards. If you travel a lot it might make sense to get one of those cards for the perks because your usage will offset the annual fee. In that department, Apple does provide no foreign transactions fees and I think that is good enough for me.