Last updated: September 2026
We collect the information you provide during onboarding and app usage, including your name, age, height, weight, weight goal, dietary preferences, food logs, water intake, step counts, workout data, progress photos, and AI conversation history. We also collect usage analytics to improve the product.
Your data is used to personalize your experience: calculate calorie and macro targets, generate meal plans and workouts, provide AI coaching, track your progress, and display trends. We use aggregated, anonymized analytics to understand feature usage and improve the product.
Your health and fitness data is private to your account. No other user can access your profile, weight history, food logs, photos, workouts, or AI conversations. We use row-level security to enforce this at the database level. Progress photos are stored privately and are never shared without your explicit action.
When you use AI features (coach, meal planning, workout generation, weekly reviews), your relevant health data is sent to our AI provider to generate personalized responses. This data is processed to produce your recommendations and is not used to train models on your individual data.
We use third-party services for authentication, AI processing, payment processing, and analytics. These providers have their own privacy policies. We do not sell your personal data.
You can delete your account and all associated data at any time from Settings → Account → Delete account. This permanently removes your profile, logs, photos, and history. This action cannot be undone.
LeanLeaf is not intended for use by children under 13. We do not knowingly collect data from children under 13.
You have the right to access, export, and delete your personal data. You can exercise these rights through the app or by contacting support.
For privacy questions or concerns, please contact us through the Support page.