3D Pdfs can be viewed in Adobe Reader on any desktop or laptop computer. However, the mobile application for Adobe Reader does not support 3D Pdfs.

A free application that allows 3D Pdfs to be viewed using Android-based smartphones and Chromebooks can be found at this link: https://play.google.com/store/apps/details?id=com.techsoft3d.hps.pdf.reader&hl=en_US&gl=US

A free application that allows 3D Pdfs to be viewed using Android- or iOS-based smartphones can be requested at this link: https://prototechsolutions.com/3d-viewer/ios-android-app/3d-pdf-viewer/

Additional free mobile 3D PDF viewers are available in the Google Play and iTunes app stores.