Augmented Reality SDK Comparison : This chart compares Augmented Reality (AR) SDKs and frameworks. Based on spreadsheet created by Gerhard Reitmayr and shared on the Augmented Reality Professionals Group on LinkedIn.
Used it in my theses' app, a great framework for the early time it was created. Easy to begin using. Various setup examples to play with. Location, gyroscope and velocimeter work well, although step counting and world walking do not seem to work.