I downloaded the app (Version 1.0.38), but unfortunately it immediately crashes when launching.
I’m using a Surface Duo 2 running Android 12. I saw a 1 star review in the Google Play Store saying they used a Samsung Galaxy Z Flip 3 and had the same issue.
So I’m thinking it might have to do with foldable phones or at least non-standard screen aspect ratios or resolutions.
Another Fold 4 user with the same issue. Can’t use it on either screen.