The "Social achievement unlocking" model: how companion usage time restrictions improve offline social activation and long-term retention

The Social Achievement Unlocking (SAU) paradigm is proposed and meticulously tested in this work. Gamified SAU reorganizes digital engagement by linking companion app use to offline social accomplishments. A randomized controlled mixed-methods sequential explanatory study with longitudinal evaluation compared SAU intervention to restriction-only and active control groups. Users can choose social activities, verify their identities through peer or location check-ins, and receive tokens for app features. LMM and Kaplan-Meier survival curves demonstrated that the SAU group had a considerable impact size on Offline Social Activation Index (OSAI) scores over time. The SAU condition had 56.3% less daily screen time than the restricted group and 80.2% less relapse risk, according to Cox proportional hazards models. A mediation study confirmed the Self-Determination Theory, demonstrating that intrinsic motivation and perceived autonomy influence behavior. Qualitative post-intervention interviews found that the restricted group experienced "white-knuckling" and "rebound bingeing," whereas the SAU group reported "reframing their phone relationship," "earned enjoyment," and "intentional social planning." The SAU model's gamified, reward-based framework promotes lasting digital habit changes and offline social connections, turning digital well-being treatments from punitive to motivating.