ButterKit

ButterKit is a native macOS app used by thousands of Apple developers to automate the App Store publishing workflow. Capture screenshots from Xcode Simulator directly into photorealistic 3D device frames, translate into all 50 App Store Connect languages using frontier AI models (bring your own key) or 18 languages for free using on-device Apple Silicon. Upload everything directly via the App Store Connect API. Start with professional templates or from scratch. Link entire folders for input and output, making it a natural fit for Fastlane and CI/CD pipelines. Use custom fonts, add 3D…