If this sort of off topic post is not allowed, I apologize.
I am an ambulatory walker/wheelchair user when in a POTS cycle. I stumbled upon this cool, free app the other day called Roll Mobility (here: https://www.rollmobility.com/).
It is a crowd-sourced map of accessible
- or inaccessible - places for people with mobility issues.
I am all for anything that makes our lives even the smallest bit easier, and I’m sure there are plenty of us with mobility issues who might find this app useful, or fun to improve for others.