If you do not need to log your mood, you can hide the stamps on the timeline.
Tap "Menu" at the bottom right of the app.
Tap "Settings & Payment Information."
Open "Techo Settings."
Tap the toggle switch under "Display 'Show Mood Tracker'" to turn it ON or OFF.
*Turning it OFF hides stamps on the timeline, but the "Mood" option in the top right dropdown menu will remain.
*If you turn it back ON, stamps will reappear on the timeline for the period it was turned OFF.