Out today: Our research in @PsychScience shows that daily smartphone use is both consistent over time and unique to an individual when studying 28,692 days of logged app usage from 780 people. A 🧵 doi.org/10.1177/095679… We found that people exhibited consistent patterns in their application usage behaviours on a day-to-day basis E.g., always using Facebook the most and the calculator app the least each day.