Also, I'm looking for a good graphing calculator app. I'll be honest in that I've never used a graphing calculator before, so I have ZERO idea as to what is vital and what is fluff on the graphing calculators I've seen in stores and the apps I've seen online. Free is great, of course, but I don't mind paying for a good app for her. Remember, this is for an 8th grader, not a college student (if that matters in terms of necessary functions). Her school sent out a supply list at the beginning of summer and suggested a TI-83. She currently has a TI-34II (from a supply list a couple of years ago). I believe the TI-83 would run me about $90 anyhow, so an app that does what it's capable of should still save me some money.