Apple ARKit is best where AR experience will enhance user understanding of the product. For instance, for a furniture app, AR via Apple ARKit can help users get an understanding of how the furniture will look. It also works well for use cases where we want to give human movement as an input for AR, so for instance for clothing apps that want users to see how they will look in a particular clothing style, etc.
It is well suited in scenarios like you wants to track objects and surface in the plane. Image recognization at multiple targets is one of the very good functionalities of EasyAR. And if you want to render 3d objects in your mobile application then it's well suited. It is free too so you can create applications at minimal costs.
EasyAr is free and there is no watermark on the output of it. It's easy to use and some features like multiple targeting in images and object and surface tracking help you to achieve what you want.