Video & photo frames stay parallel to the horizon, regardless of the device rotation. (How?)
Create custom real-time filters and add them to your app just like that.
Horizon SDK supports devices running iOS 8+ or Android 4.3+.
Record up to 4K and 60 FPS videos (iOS).
Display multiple previews with just a line of code.
Rendering is backed by OpenGL ES2.
“Horizon App Solves the Dumbest Thing About Smartphone Video”— Wired