Fud AI app,
calorie tracker.

Snap a photo of any meal, scan a packaged-food barcode, add a note to a camera or photo-library image, scan a nutrition label, speak your lunch hands-free, type it, or enter macros manually when you already know them.

• Native camera + photo library import on both platforms, with optional notes for extra meal context
• Barcode lookup on iOS and Android uses Open Food Facts when public packaged-food data is available
• Voice input via 6 speech-to-text options with per-provider language selection
• Smart serving units show slices, pieces, cups, ml, or similar units when the AI can infer them
• Text and manual fallbacks for quick logging

Bring your own key, or use optional Fud AI Plus on iOS for no-key Gemini food analysis, Deepgram voice transcription, and Coach access. BYOK lets you choose from Gemini, OpenAI, Anthropic Claude, Grok, OpenRouter, Together AI, Groq, Hugging Face, Fireworks, DeepInfra, Mistral, Ollama (local), or any custom OpenAI-compatible endpoint. On Android, Coach can also include camera or photo-library image attachments.

• Open-weight vision models out of the box: Gemma, Llama Vision, Qwen VL, Pixtral
• OpenRouter testable on $0 credits — the openrouter/free default routes to a free vision model so you can try the integration without funding the account
• Custom AI Instructions — optional Settings text appended to every AI request. Drop your region, diet, or brand context once instead of repeating it per meal ("I live in Germany, prefer ALDI/REWE brands" or "I'm on a bodybuilding cut")
• Fallback Provider — opt-in second provider that auto-retries when your primary fails on overload, rate limit, or network error. Pair a paid model with a free fallback for cheap reliability
• API keys stored in iOS Keychain (iOS) or EncryptedSharedPreferences with AES-256 (Android) — never transmitted to us
• Switch providers and models anytime; transient overloads (503 / 429 / 529) auto-retry with backoff, and AI responses with surrounding prose or markdown fences are parsed reliably

Calories, protein, carbs, fat, sugar, fiber, saturated fat, trans fat, mono-unsaturated fat, poly-unsaturated fat, cholesterol, sodium, potassium, calcium, iron, magnesium, zinc, vitamins A/C/D/E/K/B12, folate, omega-3, and more when available — adjustable serving sizes and AI-suggested units recalculate every logged entry live.

• Personalized BMR + TDEE via Katch-McArdle / Mifflin-St Jeor
• Auto daily targets, fully overridable, with per-macro pin / auto-balance
• Expanded optional nutrient goals stay separate from calorie/protein/carbs/fat math
• Home cards can show macros or selected detailed nutrients
• Browse past days with the date strip; configurable week start and optional latest-first food log sorting

A dedicated tab where the AI sees your full profile, weight history, food log, current date/timezone, richer meal details, and a thermodynamic forecast. Ask "what's my expected weight in 30 days?" or "am I eating enough protein?" and get answers grounded in your own data.

• Memory persists locally across sessions
• Goal-aware prompt chips for Lose / Gain / Maintain
• Long-press any reply to copy

iOS ships five widget families across Home Screen and Lock Screen — circular, rectangular, inline, small, medium — with both Calorie and Protein widgets. Android ships Calorie and Protein Glance widgets in two sizes each (small + medium). All update the moment you log a meal.

• Pink-gradient calorie ring with macro progress at a glance
• Above-the-clock circular and below-the-clock rectangular on iOS Lock Screen
• Auto-roll over at midnight without opening the app

iOS writes meal nutrition plus body measurements (weight, height, body fat) to Apple Health and reads profile/body metrics back when authorized. Android syncs nutrition, weight, and body fat through Health Connect with permission reconciliation and backfill support.

• Background observers for real-time bi-sync
• UUID-tagged samples for safe per-entry deletion (no orphans)
• Delete All Data is local-only — Apple Health / Health Connect data is never touched

English, Arabic, Azerbaijani, Chinese (Simplified), Dutch, French, German, Hindi, Italian, Japanese, Korean, Portuguese (Brazil), Romanian, Russian, Spanish — auto-selected by your phone's system language on both iOS and Android. Voice input can also be guided separately per STT provider.

Choose Fud Pink, red, orange, green, mint, teal, blue, or purple in Settings. The accent color updates across tabs, buttons, rings, charts, and the iOS app icon / Android launcher icon.