Best apps for ipad?

What are the best D&D or Pathfinder iPad apps?

• Apps for maps, apps for character sheets...any app that would make it easier for me to DM for my sons. Apparently this is a http://www.metafilter.com/145947/You-think-your-character-is-cool#5884936. I never knew. I want this thing since my sons want to play Pathfinder all the time but dear god it takes so long to set up a champaign and play and to DM properly! So I found http://www.maclife.com/article/gallery/8_ios_apps_tabletop_gamers#slide-0 list. Anyone have any other recommendations or opinions of the apps on that list? For reference we have one first gen iPad (probably useless) and one second gen iPad running iOS 8.1 (barely....) and a several different iPhones including a 4, two 4s and one 6. Also if anyone has a link to a previous askme that would be appreciated; our search function likes neither ampersands nor exact phrases, and my "Related Question" results don't deal with apps too much.

• Answer:

  One party member in my group (and the GM too, I think) uses http://www.wolflair.com/index.php?context=hero_lab.