Habits can trigger a ripple effect, driving positive changes across mul-tiple lifestyle domains. Therefore, exploring how digital habit apps integrate and leverage these interconnected behaviors is essential, yet current research on this integration remains unclear. This study analyzes 585 behavior recommendations from 36 contemporary habit apps, classifying them into 20 meta-behaviors. Find-ings show significant variation, with apps averaging 45 suggested behaviors spanning roughly 13 meta-behaviors. Physical exercise is most prominently rep-resented and interconnected, frequently paired with Nutrition and Leisure Activ-ities. Apps supporting more lifestyle domains generally offer advanced habit-for-mation functionalities. However, user ratings suggest that functional diversity alone does not guarantee satisfaction. This paper provides users and developers with insights into selecting and designing effective habit apps, emphasizing the potential of interconnected behaviors to foster comprehensive and sustained life-style improvements.