This app was mentioned in 1 comment, with an average of 3.00 upvotes
I'm assuming you have a smartphone.
I can't say enough good things about Pocket Prep.
Here's the link for it on iOS: https://itunes.apple.com/us/app/hesi-a2-exam-prep-2015/id526267675?mt=8
And Android: https://play.google.com/store/apps/details?id=com.pocketprep.hesi&hl=en
It's like $20.