ButterKit

App screenshots & localization

Only for Mac

Free · In‑App Purchases

Mac

"ButterKit is the best software purchase I made this year." - Franklin B, founder of EchoKeep. As featured in iOS Dev Weekly and Swiftjective-C ButterKit helps app developers reach more users faster. Quickly create stunning screenshots for the App Store; capture straight from Xcode Simulator, edit with 1-click templates and 3D devices, localize to all 39 App Store Connect languages, and upload/export. It’s fast and private with no accounts or ads. Apple M1 or newer is recommended for best performance (Intel works too). KEY FEATURES • App Store Screenshot Design Studio: pro typography, gradient tools, and precise 3D device controls (style, bezel, rotation, scale) • Professional Templates: designer-built layouts make screenshots look polished in minutes • Capture from Xcode Simulator: pull your app screenshots directly from Xcode Simulator into photorealistic 3D devices • Automatic Translations: use built-in translations for 20+ languages, or bring your own OpenAI API key to translate to all 39 supported ASC languages (Pro feature) • Automatic App Store Connect Uploading and Batch Image Exports • Built for Real Workflows: infinite canvas, keyboard shortcuts, undo/redo, file saving, custom fonts, gradients, and style presets. • Mac-native, Metal-accelerated: buttery-smooth editing with a realtime 3D renderer and lifelike iPhone, iPad, and Mac device frames. • Private by Design: all core features run on-device. Optionally use your own API keys for additional translation options (Pro feature) BUILT FOR DEVS & DESIGNERS ButterKit streamlines the full pipeline from capture, edit, translate, and export - so you spend time refining your product, not wrangling artboards. REALTIME 3D, ZERO WAIT Rotate, frame, and light photorealistic devices in a GPU-powered viewport. What you see is what you ship: responsive, precise, and smooth. LOCALIZE IN MINUTES Translations automatically respect typographic rules and constraints, keeping captions readable and aligned across all localizations. PRO FEATURES • Available as a one-time purchase or subscription • Remove "Made with ButterKit" watermark • Publish metadata directly to App Store Connect • Unlock OpenAI API usage for translations to all 39 App Store Connect languages Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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• New: "Fit to 1 line" text toggle! Highly requested feature for certain layouts, this will auto-scale your text to fit on 1 line. Thanks to Jan! • New: independent left/right text padding for more flexible layouts • New: 3D Apple Watch Series 11 is now available, shoutout to our Reddit community • New: smoother performance, navigation, and camera movement (more butter) • New: onboarding, empty states and UI are more polished • Fixed: issue where uploading hundreds of artboards to App Store Connect took longer than expected. ButterKit now batches artboards more efficiently, much faster in testing! Thanks to Carsten on this. • Fixed: Undo now works much more reliably when adding/removing screenshots • Fixed: metadata sometimes wouldn’t save (thanks reddit folks for help on this!) • Fixed: String Catalog is now more reliably discovered by the Capture Tool (thanks Timo!) • Fixed bug where backgrounds sometimes didn't appear when switching localizations • App Store Connect metadata now validates to check for emojis before upload (thanks Kristoffer) • It's now easier to choose what type of artboard you want to add. Just tap the ⋮ button next to "Add Artboard" • New text character count UI

The developer, Zachary Spitulski, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Usage Data

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer indicated that this app supports the following accessibility features. Learn More

  • Supported Features

    • Dark Interface

    • Differentiate Without Color Alone

    • Sufficient Contrast

  • Seller
    • Spitulski Ventures LLC
  • Size
    • 656 MB
  • Category
    • Developer Tools
  • Compatibility
    Requires macOS 15.6 or later.
    • Mac
      Requires macOS 15.6 or later.
  • Languages
    English and 4 more
    • English, French, German, Japanese, Spanish
  • Age Rating
    4+
  • In-App Purchases
    Yes
    • Pro License (Yearly) $19.99
    • Pro License (Lifetime) $44.99
  • Copyright
    • © Spitulski Ventures LLC