From the README:
"Remote configuration for iOS
Break free of the two-week tyranny of the App Store approval process!
Many developers don't realize that they are allowed to remotely
control the behavior of their app (provided that the application isn't
downloading any new code).
GroundControl gives you a dead-simple way to remotely configure your
app, allowing you to add things like feature flags, impromptu A/B
tests, or a simple "message of the day")."
https://github.com/mattt/GroundControl