The candy store across from Termini's (South west corner, behind 4th street cookies)in the Reading Terminal Market has many different kinds of carmel apples (and the original red candy ones too), and their apples are always crisp!
Every year one of my husband's patients sends us a huge box of assorted carmel, chocolate, and nut covered apples and they are fantastic. They are from QVC! Seriously, terrific. The name of the company is Mrs. Prindables.
I have had those Mrs. Prindables, and they are really delicious. In fact, they had them on QVC on Monday afternoon/night. I haven't tried any food from QVC except for the Mrs. Prindables, but here's another thumbs up for those apples.