I Built an AI Tool That Creates App Store Screenshots in Seconds. Here's How Google Gemini Made It Possible

This is a submission for the Built with Google Gemini: Writing Challenge What I Built with Google Gemini As a solo indie developer shipping iOS apps under my studio, Studio Rehoboth , I kept running into the same bottleneck every time I was ready to launch: App Store screenshots . Apple requires very specific image dimensions (1284 x 2778 px for iPhone, 2048 x 2732 px for iPad), and making them look professional with device mockups, catchy headlines, and matching color palettes used to mean hours in Figma. For every single app. Every single update. So I built AppStoreGenius : a personal AI-powered tool that turns my raw app screenshots into polished, Apple-compliant App Store assets in seconds. I built it directly in Google AI Studio using the Gemini API, and it's become an essential part of my development workflow. Here's what it does: AI-Powered Design Generation : I upload a raw screenshot of my app, and Gemini analyzes the image to automatically generate a marketing headline, descr