I'm glad it's working on mobile! The main trouble I ran into when testing on mobile is that the ring fails to display its hint. The hint reads,
The Crow Queen's Tower:
Wander east until the trees have given way to boulders.
Wander south until the holes have filled with bubbling tar.
At this junction of tree, rock, pit, and pool, the Tower you shall find.
Which is a guide to navigating the desert, to the east of the Spring. Good luck and let me know if you're still running into issues!