Google ARCore - Google Augmented Reality SDK
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.
8th Wall - Cross-Platform Mobile AR
EasyAR SDK - World-leading AR developing platform for its high efficiency, powerfulnessand easy to use.
Zappar - Zappar is a clever little app that can see and recognise images and objects in the world around us.
ARToolKit - The world's most widely used tracking library for augmented reality.