ButterKit is a macOS-native screenshot studio designed for app developers and marketers to create polished App Store screenshots. It integrates with Xcode Simulator for direct capture, offers real 3D device mockups, pro editing tools, and instant translation to 50 languages. Users can upload designs directly to App Store Connect. Built on Metal for high performance (up to 120fps), it supports automation via Fastlane and AI agents through MCP. The app runs offline for core features and offers a one-time purchase option.
