ChefAI — AI Recipe Generator, Meal Planner Calorie Tracker | Flutter Full App

ChefAI is a complete Flutter mobile app that uses AI to generate personalized recipes from ingredients you already have, build 7-day meal plans, track daily calories & macros, and guide you through cooking with a beautiful step-by-step cooking mode. Powered by OpenAI GPT-4o and Google Gemini 1.5 Pro — switchable without an app update.

Built for developers and entrepreneurs who want to launch a polished, monetizable AI food app on the App Store and Google Play under their own brand.

Key Features

• Dual AI Providers — OpenAI GPT-4o & Google Gemini 1.5 Pro. Switch providers instantly via Firebase Remote Config — no app update needed.
• AI Recipe Generator — Enter pantry ingredients and get complete, realistic recipes with full nutrition data, chef tips, and ingredient substitutions.
• 7-Day AI Meal Planner — Auto-generate a full weekly meal plan balanced to your calorie goal, dietary preference, and cuisine variety rules.
• Nutrition Tracker — Daily calorie ring (fl_chart), macro bars (protein / carbs / fat / fiber), per-meal logging, water tracker, and weekly history.
• ‍ Step-by-Step Cooking Mode — Full-screen immersive view, wakelock (screen stays on), auto countdown timers, voice navigation, and an ingredients side panel.
• Serving Adjuster — Scale any recipe from 1 to 12+ servings. All ingredient quantities recalculate automatically with fraction formatting.
• Ingredient Substitutions — AI-powered substitution suggestions that respect your dietary preferences and allergies.
• ️ Voice Input — Speak your ingredients instead of typing using the built-in speech-to-text.
• Dark Mode — Full dark mode support on every screen. Toggled from Settings.
• Authentication — Email/Password, Google Sign-In, and Sign in with Apple via Firebase Auth.
• Recipe Library — Save, favorite, search, and filter your generated recipes. Grid & list toggle.
• Explore Screen — Curated recipe sections, trending dishes, and quick cuisine filters.
• Monetization Ready — RevenueCat subscription IAP + AdMob banner & interstitial ads built in. Free tier limits controlled from Remote Config.
• Push Notifications — Firebase Cloud Messaging (FCM) + local notifications for cooking timers and meal reminders.
• ⚙️ Remote Config — All API keys, free tier limits, and ad unit IDs are managed server-side. No app update required to change them.

What’s Included

• ✅ Complete Flutter source code (Android + iOS)
• ✅ All screens, widgets, providers, and services
• ✅ OpenAI & Gemini AI service implementations
• ✅ Firebase Auth, Firestore, Remote Config, FCM integration
• ✅ RevenueCat IAP subscription integration
• ✅ AdMob banner & interstitial ad integration
• ✅ Full documentation (HTML, offline-ready)
• ✅ Quick Start Guide
• ✅ Firestore Security Rules
• ✅ Free tier & premium tier logic

️ Tech Stack