Hololens: Share a WorldAnchor between individual apps

I can create a WorldAnchor through HoloToolkit-Unity and I can restore them, when they are available.

But how can I create WorldAnchors via the Holo Remote app and transfer them to my standalone-deployed app to use as well?

There exists a method to share WorldAnchors through a server, but that is not what I'm looking fore, because there is only 1 Hololens device involved.