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Median number of sessions per user and median length of sessions (seconds), across 3 arms for the first 30 days since download.
| Policy implemented within arm | Number of sessions, median (IQR) | Length of sessions (seconds), median (IQR) |
| Standard policy | 10.5 (4-23) | 36 (9-115) |
| Random policy (MRTa) | 9 (3-27) | 35 (9-113) |
| No notification policy | 6 (3-21) | 43 (12-129) |
aMRT: micro-randomized trial.
