Does anyone here play tabletop games like DnD? What apps do you use to keep track of everything?

Anyone play DnD or Pathfinders or any sort of tabletop rpg games?

I'm curious what apps you guys use to keep track of everything, I'm launching my own iOS app for this and would like to chat about what you like / don't like about the apps you're using now.

https://www.producthunt.com/products/tomeworlds?launch=tomeworlds

Cheers