Earlier in portrait mode, calendar dimensions were too small and it was hard to play the activity.
Repositioned score from the right of the calendar to the bottom of the calendar to create extra space on right and increased width of the calendar. Now, the calendar can be easily accessed on vertical screens too.
Sample -->
Horizontal Mode
https://cdn.pbrd.co/images/H5woPRM.png
https://cdn.pbrd.co/images/H5wp7p5.png
Vertical Mode
https://cdn.pbrd.co/images/H5wpkDB.png
https://cdn.pbrd.co/images/H5wpFwq.png
Looks fine in both Calendar and Find the Day activity.