Noom Weight utilization and engagement
Overall utilization of the NW application was quite high; 83% of the available weeks had measurable subject interaction with the smartphone application. Over time, NW opening rates each week remained relatively constant until week 16 (Figure S2, The social component of the application was utilized much less frequently. Average NW engagement per subject for social activities included interaction with 1 coaching message and 1 group post/comment/like.A behavioral shift was observed between week 1 and week 16. Over time, NW participant engagement became more self-initiated, with a greater percentage of application engagement spent with meal logging (29.2% week 1 vs. 49.0% week 16, Temporal changes in Noom Weight engagement. Over time, engagement with the Noom Weight app became more self-directed, and participants spent a greater percentage of their time with meal logging (yellow) or weigh-ins (green).