DecorAI — App Features & Functionalities

Core App Features

1. AI Room Redesign

• Room Photo Upload: Import room photos from the camera or photo library.
• Design Presets: Redesign rooms in multiple interior styles: Minimalist, Scandinavian, Industrial, Modern, Cozy, and more.
• FAL.ai Integration: Rapid image generation using state-of-the-art GPT-Image 1.5 models.

2. AI Style Analysis & Recommendations

• Interior Layout Auditor: OpenAI's GPT-4o analyzes room photos to find layout issues and strengths.
• Improvement Tips: Generates personalized tips for lighting, furniture placement, and color palettes.

3. Monetization & RevenueCat

• Subscription Paywall: Custom subscription packages (Weekly, Monthly, Yearly) verified via RevenueCat.
• Credit Purchases: Users can buy one-time credit packs to run redesigns.

4. Interactive Onboarding & User Accounts

• Lottie Vector Animations: Seamless, beautifully animated onboarding flow.
• Multi-Auth Sign-In: Support for Apple Sign-In, Google Sign-In, and Anonymous guest access.
• History Gallery: Save past redesigns in Firestore and load them asynchronously.

5. Backend Security

• Cloud Functions Secret Manager: fal.ai and OpenAI API keys are stored as Firebase Secrets.
• App Check integration: Ensures API requests only come from legitimate users.

DecorAI is a premium SwiftUI iOS application for AI-powered room redesign and interior design recommendations. Users upload photos of their rooms, select a preferred design style, and receive an AI-generated redesigned room image. The app also analyzes room design layouts and provides design improvement suggestions using GPT-4o. It integrates Firebase for authentication and functions, fal.ai for image creation, and RevenueCat for subscriptions.

Technical Stack

• Frontend: Swift & SwiftUI (iOS 15+)
• Backend: Firebase Cloud Functions (Node.js & TypeScript), Firestore, Storage
• Authentication: Firebase Authentication
• AI Services: fal.ai (GPT-Image 1.5 model proxy) & OpenAI (GPT-4o)
• Payments & Subscriptions: RevenueCat SDK
• Analytics: Aptabase

Libraries & Dependencies (Swift Package Manager)

• firebase-ios-sdk (Firebase Auth, Cloud Functions, Firestore, Storage)
• purchases-ios-spm (RevenueCat SDK)
• Kingfisher (Image downloading and caching)
• lottie-ios (Lottie vector animation engine)
• aptabase-swift (Privacy-first tracking)
• SystemNotification (System toast messages)
• SwiftyJSON (JSON decoding helpers)
• Glur (Visual blurs)
• Alamofire (HTTP networking)