I am not sure if I am in the right forum, so sorry if not. But thanks for your help:
I want to introduce newbie's to Geocaching, so I give them coordinates to look for on ther smartphone.
For example 47 23.333 9 23.333.
Android users can type loc:47 23.333 9 23.333 and get to the correct tree but not iPhone users. Neither with apple maps nor with google maps.
What can I do that it works both for Android and iPhone users?