As a Dungeon Master I sometimes struggle creating NPC or towns on the fly. The DND 5e DM Tools helps you create and manage the game. Sometimes your players just go off the rails and you are left scratching your head going what do I do? This app randomly generates a town with some shops and a basic quest. It also creates random NPC and their stats. If that wasn't enough it also creates magic items and selects a random monster for you to fight. (Based on parameters)

So far you can choose a variety of options. Eventually this app will be expanded out to include more like guilds.