Fig. 1
An example of Appnome on the screentime (A), number of activations (B), and number of notifications (C), of one female (1) and one male (2) study participant. The figure shows the App-use features of one female adolescent and one male adolescent in the study. Study participants uploaded daily screenshots from their cellphone settings, detailing App-specific screen time, unlocks, and notifications throughout the study period. Image processing and OCR techniques were employed to extract text from these screenshots. As shown in (A-1), the female adolescent spent most of the screen time on TikTok and Instagram in almost the entire study period. As shown in (B-1), most of the screen unlocks comes from activating WhatsApp. As shown in (C-1), the adolescent received more than 150 notifications from WhatsApp daily and less than 100 notifications from Instagram daily in the study period. The male adolescent has a different app-use feature compared to the female participant. As shown in (A-2), the male adolescent spent more than 1000 min using YouTube in the observed days. The adolescent also spent some time on Instagram and Game Apps. As shown in (B-2), most of the screen unlocks comes from activating Instagram, WhatsApp, and YouTube. As shown in (C-2), the adolescent received notifications mainly from WhatsApp in the study period.
