Imagine you had just escaped from a prison cell. You have no armor and no weapons (now take time to recalculate your AC and attack roles). You bare-hand fight your way through the guards to the armory and you get all of your gear back. You put your armor back on and equip your trusty weapon (take the time to recalculate your AC and attack roles AGAIN). Now you’re on your way trying to get out of the prison and you go through a series of encounters, each of which you have used different spells or shot your weapons multiple times. You’re finally at the front door and the main boss is blocking your way. You engage him and just as you are about to attack, you can’t remember if you’ve already used all of your spell slots or if you’ve shot all of your arrows.
This app is designed for role playing games which requires a lot of different calculations to be made for each attack, skill check, and defense. A lot of work goes into maintaining your character sheet.