Apple ARKit - A framework to create Augmented Reality experiences for iOS
Google ARCore - Google Augmented Reality SDK
SketchAR - Start drawing easily using augmented reality
Vuforia SDK - Vuforia is a vision-based augmented reality software platform.
AirMeasure - Turn your phone into a ruler with the power of AR
Wikitude SDK - Wikitude’s all-in-one AR SDK combines 3D tracking technology (SLAM), image recognition and tracking, as well as geo-location for apps.