StepPlan reads steps, walking distance, and active energy from Apple Health only after permission. This information supports on-device progress, reports, action plans, and badges. After sign-in, daily summaries may be stored by the developer for continuity and anonymous rankings. Health data is not used for advertising or marketing and is not sold. Regular AI chat does not include Apple Health values. If the user chooses contextual AI analysis, the app previews the activity data prepared for that request and asks for separate permission before first use. After authorization, the listed steps, goal, trend, streak, or walking-plan summary is sent through the developer's server to DeepSeek with the user's question.