Table 4.

Comparison of design features of the Families Moving Forward (FMF) Connect mobile health intervention with thematic checklist of features to improve user engagement.

Design feature themes that improve engagement Wei et al [37]	Existing features in FMF Connect beta tests	Recommended features for future development
Interface esthetics	Pleasing color scheme Positive evaluation of graphics	—a
Navigation	Easy to use (iOS) Table of contents (BT2b)	Tutorials/overlays Direct search feature Navigation shortcuts
Personalization	Selected videos (BT2) Profile graph Exercises—provision of goal setting and feedback	Open access to content Multiple children Personalize notifications Behavior tracker tool
Reinforcement	Messages of congratulations Weekly emails Tip of the day (BT2)	Notifications Badges
Communication	Family Forum	Coaching State or regional forums
Message presentation	Simple language Positive and nonstigmatizing tone Videos Pictures Font sizes and colors to highlight information Checks for understanding in games/quizzes	Closed captioning Spanish language
Credibility	Evidence-based information from credible source Encrypted and password-protected	—

^aNone provided by participants.

^bBT2: second round of beta-testing.