Wizard of Story
Wizard of Combat
The Atlas Worlds Kickstarter is about a new campaign management tool, with the focus on revealing GM content to players piece by piece, but the implementation and pricing details are curiously vague:
https://www.kickstarter.com/projects/markohnsman/atlas-worlds-build-your-worlds-on-our-shoulders/Atlas Worlds is a tool designed to enhance the role playing game experience for players and Game Masters alike. Our tool serves as an organizer for game content and provides players access to that content in a way they would discover it as a character.