ButterKit vs Microsoft PowerToys

ButterKit is a workflow automation tool for iOS developers who need to produce and publish App Store assets across many languages and storefronts. It captures screenshots directly from the Xcode Simulator, drops them into photorealistic 3D device frames, and translates copy into all 50 App Store Connect languages, either using frontier AI models or 18 languages for free using on-device Apple Silicon models. It integrates with Fastlane and CI/CD pipelines for automated capture and can upload the finished assets straight to App Store Connect, handling multi-storefront publishing without manually juggling dozens of screenshot sets. It is used by thousands of Apple developers to cut down the repetitive design and localization work that comes with every app release.

Microsoft PowerToys is a collection of free, open-source utilities that extend Windows with productivity tools such as window layout management, a quick launcher, bulk file renaming, keyboard remapping, and a system-wide color picker. It is built and maintained by Microsoft with an active open-source community on GitHub.

• Generous free tier includes all 50 languages and App Store Connect upload
• One-time Pro purchase available instead of forcing a subscription
• Direct Fastlane and CI/CD integration fits existing developer workflows
• On-device translation for 18 languages avoids extra API costs

• Completely free and open source
• Actively maintained with frequent Microsoft-backed releases
• Wide range of independent utilities you can enable individually
• Backed by an active GitHub community for bug reports and features

• Free tier exports are watermarked, limiting production use without upgrading
• Full 50-language translation via frontier AI models may incur additional costs
• Built specifically for Apple's App Store, with no mention of Google Play support

• Windows-only, no Mac or Linux version
• Some utilities are still experimental and can be less polished
• Requires manually enabling and configuring each utility you want