FitBuddy is a free, open-source health tracker for Android, with region packs that personalise diets and daily routines. Snap a photo or type what you ate — an LLM estimates calories and macros instantly. Review ingredients, tweak weights with live macro recalculation, and save. Bookmark favourite meals as presets for one-tap logging next time. Features: • Region packs — personalise AI prompts, staples, portion language, and log examples to your region • Smart logging — photo or text; AI parses food and exercise automatically • Meal review — edit dish name, adjust ingredient weights with live macro recalc • Editable workouts — structured sessions, AI session names, upgrade simple logs • Presets — searchable saved foods and meals; recently used on top; one-tap log • Barcode scan — look up packaged foods; save or log them, and contribute missing products through Open Food Facts • Dashboard — daily calorie ring, combined food/exercise log, macro breakdown • Body goals — current weight follows the newest reading; manually save calorie and macro targets, or calculate fresh adult targets with bounded or maintenance weight milestones, transparent Mifflin–St Jeor/TDEE estimates, quality-gated smart-scale trends, bounded AI-assisted personalization, activity guidance, and BMI screening context; AI can choose only between exact plans generated safely on-device • Analytics — weekly or rolling 30-day calorie intake vs target, target-weight body charts, and a compact GitHub-style six-month calorie-burn heatmap • Encrypted backups — AES-256-GCM; gzip; optional cloud with append-only chunks • Loading animations — choose Analyzing / Insights wait animations in Settings • Auto failover — rotates API keys and models on rate limits; stays on your preferred platform • Offline fallback — works without an AI key via built-in simulator • Developer support — Razorpay UPI/cards for India and GitHub Sponsors internationally • Material You — dynamic color theming on Android 12+ • Crash repo