Butterkit

ButterKit is a professional toolkit for Apple developers who want to ship localized apps to the App Store faster and with confidence. It automates the most time-consuming parts of App Store preparation - screenshots, localization, and metadata management - so you can focus on building great apps instead of wrestling with tools. Generate and localize stunning 3D screenshots with drag and drop or Fastlane integration, manage metadata, upload directly to App Store Connect and more. Built by developers, for developers, ButterKit fits naturally into modern Xcode and CI workflows, saving hours every release while improving consistency, quality, and accuracy across storefronts.