Privacy Policy

Account & Profile: Your name, email address, and optional details like age, sex, height, weight, and activity level to personalize your calorie targets.

Nutrition & Activity Logs: Meals, ingredients, calorie/macro breakdowns, water intake, fasting intervals, and weight history you log.

Camera & Voice: Photos of meals and voice recordings only when you explicitly use our camera scanner or voice-log features to estimate nutrition.

Technical & Analytics Data: Anonymous device info, app performance metrics, and crash diagnostics to ensure reliability and fix bugs.

Calculating personalized basal metabolic rates (BMR), daily calorie limits, and macronutrient targets based on peer-reviewed science.

Processing meal photos and voice inputs with AI models solely to identify food items and estimate nutritional content.

Displaying progress charts, fasting countdowns, streak milestones, and sending user-configured reminders.

Improving app functionality, AI model accuracy, and overall user experience.

AI meal analysis processes your food photos and descriptions solely for nutritional estimation.

We NEVER sell, rent, or trade your personal health, dietary, or biometric data to third parties or advertising networks.

Trusted infrastructure providers (e.g. encrypted cloud databases) process data strictly under confidentiality and data protection agreements.

All data is encrypted in transit using industry-standard SSL/TLS protocols.

Cloud data is protected with database-level Row Level Security (RLS), ensuring only you can access your personal logs and metrics.

We enforce strict access controls and continuous security monitoring.

Access & Update: You can review and modify your goals and personal information anytime in Settings.

Export Summary: You can generate and export a summary report of your nutrition history directly in the app.

Permanent Deletion: You have the right to permanently erase your account and all associated logs at any time via Settings → Delete Account.

ZCAL is intended for users who are at least 13 years of age (or 16 where required by local law).

We do not knowingly collect personal information from children without verified parental consent.

We may occasionally update this Privacy Policy to reflect app updates or legal requirements.

Significant changes will be notified within the app or via the email linked to your account.