Online or app-based parenting interventions have become more widely available in recent years. However, challenges related to poor engagement and high attrition have been noted in the literature, and there are important questions regarding ways to enhance parental engagement and improve treatment outcomes through digital health, including through the addition of therapeutic coaches. The current study evaluated differences in the effects of active versus "light-touch" coaching implementations of an enhanced version of Family Check-Up Online (FCU-O) on parent/family and child-level outcomes from pre-treatment to 2-month follow-up assessments. The enhanced version of the FCU-O was adapted to support families in coping with pandemic-related stressors to prevent youth behavioral and emotional problems during middle school and included app-based modules designed to support effective parenting practices as well as virtual coaching. In the "active-coach" condition, parenting coaches were active in efforts to arrange coaching sessions with parents as they worked through the app-based modules, while in the light-touch intervention, parent-coaches enrolled participants in the context of a one-time support session but did not actively pursue families to schedule additional sessions. Parents in the active-coach condition exhibited greater engagement with both the app and coaching sessions than parents in the light-touch condition. Further, stronger improvements in several aspects of parenting and child functioning were observed in the active-coach versus light-touch conditions. However, parents in the light-touch condition showed reductions in stress and comparable levels of dosage when using the app. Implications for prevention and accessibility of digital health interventions are discussed.