At the moment we are unable to view a board that is filtered by the subitems on a mobile/ on the app.
As a company we would find this incredibly useful and would save our staff that are on the road a lot that are using Monday on their phones lots of time. At the moment they are unable to view the important information they need without scrolling through lots of info, or asking someone that is on desktop to tell them the info they need.
We are really hoping that this will be developed soon!