Value of collection.

My dad passed away last year, and he has a small set of coins he had been saving in hopes that they might be valuable one day. Nothing rare, just some bicentennial quarters, Susan B Anthony dollars, JFK fifty cent pieces, etc.

My mom was just gonna take these and deposit them in the bank, but I told her to wait, at least find out if some might have the value my dad was hoping for.

So yesterday, I downloaded an app for my phone and started scanning them. My question is about one thing he had, a collection of 50 states quarters, uncirculated. Scanning with the phone app, many of them weren't worth much, but there were several that said there value could be as much as $600, $800, even $1000.

Now I know I won't be able to get that if I were to sell them, but would it be more valuable to sell as the complete set, or separate out the more valuable coins to sell individually?