ModaModel - AI Fashion Photography
Tech Stack
Overview
ModaModel is an AI-powered mobile app I built to solve a real pain point for boutique owners and fashion designers: getting professional-looking model photos without expensive photoshoots. Users simply upload a photo of their garment, and the app generates realistic AI model photos wearing that piece. The app uses Gemini Nano for on-device AI processing when available, with Firebase-backed cloud processing as a fallback. I implemented a credit-based monetization system with in-app purchases, a gallery for saving and organizing generated images, and sharing features optimized for e-commerce platforms like Instagram and Shopify. The entire pipeline — from image upload to AI generation to result delivery — is designed to complete in under 30 seconds.
Challenges
- •Achieving realistic AI-generated model photos that maintain the garment's true colors, texture, and proportions
- •Balancing on-device AI processing (Gemini Nano) with cloud fallback for devices that don't support on-device inference
- •Designing a monetization model that feels fair — users need to see value before paying, but generation has real compute costs
- •Handling large image files efficiently on mobile without degrading quality or causing memory issues
Solutions
- •Fine-tuned the AI pipeline with pre-processing steps for garment isolation and color calibration to ensure output fidelity matches the input
- •Built a capability detection layer that checks for on-device AI support at startup and seamlessly routes generation requests to the appropriate backend
- •Implemented a freemium model with 3 free generations, then credit packs — users see the quality before committing, and bulk credits reduce per-image cost
- •Used progressive image loading with resolution tiers: quick preview at low-res, then full quality delivered asynchronously with background download and caching
Results
Published on App Store with in-app purchases and premium features