App Store Screenshots — AI-Powered App Store Screenshot Generator

Introduction

App Store Screenshots automates the tedious process of creating marketing screenshots for app stores. Instead of manually composing device mockups and promotional text in design tools, developers describe their app and the tool generates store-ready screenshots with appropriate device frames, text overlays, and backgrounds sized to Apple and Google specifications.

What App Store Screenshots Does

• Generates complete sets of App Store and Play Store screenshots from prompts
• Applies correct device frames for iPhone, iPad, and Android devices
• Adds marketing copy and feature callouts with proper typography
• Exports in all required dimensions for each store listing
• Supports multiple locales for internationalized app listings

Architecture Overview

The project is a TypeScript application that combines AI generation with a rendering pipeline. The AI agent interprets the app description and generates a visual composition plan specifying layouts, colors, and copy. A rendering engine built on Puppeteer captures each screenshot from HTML templates with CSS animations frozen at the right frame. Device frame overlays are composited in a final pass, and the output is cropped to exact store specification dimensions.

Self-Hosting & Configuration

• Requires Node.js 18+ and an LLM API key for the generation step
• Configure device targets, color schemes, and copy style in the project config
• Custom HTML templates can replace the defaults for brand consistency
• Supports both light and dark mode variants per screenshot
• Output directory and naming conventions are configurable

Key Features

• One-command generation of complete screenshot sets
• Correct dimensions for every App Store and Play Store device class
• AI-generated marketing copy matched to your app description
• Device frame library covering current iPhone, iPad, and Android models
• Batch generation for multi-locale releases

Comparison with Similar Tools

• Figma — manual design work for each screenshot; this tool automates the entire process
• LaunchMatic — SaaS with subscription pricing; this tool is open source and free
• Screenshots.pro — template-based drag and drop; this tool uses AI generation
• Fastlane screenshots — captures real device screenshots; this tool generates marketing compositions

FAQ

Q: Can I use my own app screenshots as input? A: Yes, you can provide actual app screenshots that get composited into device frames with generated marketing text overlays.

Q: Does it handle all required App Store sizes? A: Yes, it generates the full matrix of required sizes including 6.7-inch, 6.5-inch, 5.5-inch iPhone displays and both iPad sizes.

Q: Can I customize the visual style? A: Yes, the HTML templates and CSS are fully customizable. You can match your brand colors, fonts, and layout preferences.

Q: How many screenshots can I generate per run? A: There is no hard limit. Typical store listings use 5-10 screenshots per locale, and the tool handles multi-locale batches in a single run.

Sources

• https://github.com/ParthJadhav/app-store-screenshots