ARToolKit isn't markerless like ARKit though.
Re:ARKit
by aaronbrethorst on Wednesday June 07, 2017 @02:53AM
(#14504211)
There have been MP3 players for years. Apple is pretty late to the game.
There have been smartphones for years. Apple is pretty late to the game.
For example ARToolKit is available for Unity, or even Anddroid.
https://artoolkit.org/documentation/doku.php?id=6_Unity:unit...
Unless you are targeting a specific audience (for example artists that use the iPad Pro) for most developers it really doesn't make sense to confine yourself to iOS.