By tapping the "Month" icon at the top left of the app screen, you can switch to the monthly view. Here, you can look back on the contents you have clipped to your covers through a slideshow and calendar. You can choose to switch the calendar display between "Monday Start" and "Sunday Start."
Steps to change "Monday Start" / "Sunday Start"
Tap "Menu" at the bottom right of the app.
Tap "Settings & Payment Information."
Open "Techo Settings."
In the "Week Begins" section, tap your preferred option: "Monday Start" or "Sunday Start."