Introducing Callouts: a new way to highlight your features and UI
Callouts let you highlight features and UI in 3D space alongside your devices. Plus performance boosts and refreshed onboarding.
Changelog
Track every ButterKit release, new features, improvements, and bug fixes. Stay up to date with the latest updates.
Showing 28 releases
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Your translations can now take direction
Add translation instructions in Project Settings so AI models know your tone, capitalization rules, and what not to translate.
11 new App Store Languages, Apple Vision Pro, and AI Image Placement
ButterKit now supports all 50 App Store Connect languages, adds Apple Vision Pro support, and lets AI agents place images on your artboards.
MCP Support: AI-Powered Screenshot Generation and Localization
ButterKit now speaks MCP (beta). Generate screenshots, localize into 39 languages, and upload to ASC from any AI agent or CI pipeline.
Delta Translation, Preview Navigation, and alignment fixes
Introduces Delta Translation for smarter, incremental re-translation, adds Preview Navigation controls, and fixes Device Overflow alignment issues.
"Do Not Translate" toggle, improved undo, and text refinements
Adds a highly requested 'Do Not Translate' toggle for text blocks, plus improved undo reliability, better cloud translation fallback, and numerous text and layout refinements.
Customizable images per localization, new fonts, improved text editing, and more
Images like logos and stickers can now differ per language. Plus new fonts, toast notifications, and text editing improvements.
Improved translations, UI, App Store Connect validation, user-added templates and more
Upgraded localization workflow with multi-select, market size data, and better UI. App Store Connect metadata now validates for emojis before upload.
New text tools, Apple Watch 3D model, improved performance, and more butter!
Highly requested "Fit to 1 line" text option, independent left/right padding, 3D Apple Watch Series 11, and smoother performance.
UI Improvements and folder-linking bug fixes
Improves metadata, settings, and license management UI. Fixes rendering quality and translation bugs.
Folder-linking (e.g. Fastlane), additional text controls & more
Screenshot folder-linking support for tools like Fastlane, improved text editing controls, and dozens of UI refinements.
Holiday update with new 3D device, templates & more
Seamless Backgrounds, high resolution Apple Watch 3D model, new templates section, and improved color picking UI.
Performance improvements and bug fixes
Improved UI for localizations, easier source language setting, and critical bug fixes for exporting and translations.
Introducing Device Overflow
Device Overflow is a new way to quickly create stunning designs with 3D devices that span across multiple artboards, rendered in realtime using Metal.
Text line-height, background image controls, and UX improvements
Text editing now supports line-height and ligature controls. Copy text blocks between artboards and override background styles on variants.
Text shadows, text strokes, UX improvements
New text shadows and text strokes! Plus arrow key adjustments on input fields and quick copy for 3D models between artboards.
The big v1.3 October Update: App Store metadata uploads, new models, bug fixes and more!
ButterKit can now translate and upload App Store Connect metadata directly! Plus support for Gemini, Anthropic, OpenRouter, and a buttery new look.
Add custom images to artboards
Easily add custom images (logos, graphics, illustrations) to your artboards via the new Images tab in the Inspector.
Stability improvements
Fixes for landscape screenshots, export thumbnails, App Store Connect log, and new Spanish localization.
Improved 3D models, mouse navigation, ASC API fixes
More accurate and photorealistic iPhone and iPad 3D models, improved lighting, and middle mouse button navigation.
Customize variant translations
Highly requested: easily adjust translations on variant artboards when a translation is longer than your design allows.
Improved navigation with the trackpad
Pinch-to-zoom and general trackpad navigation is much smoother — more butter added!
Performance/RAM usage improvements, font fix, and German language support
Significant improvements to RAM usage, background CPU usage fixes, and German localization.
App Store Connect Uploads
Direct App Store Connect uploads via the ASC API. Upload all of your screenshots directly from ButterKit to App Store Connect.
App Store Previews
See how your design and layouts will look on the App Store before you export with the new App Store Preview feature.
Added support for markdown
Use markdown when editing text to emphasize certain words. Bold and italic renders instantly onto your artboards.
Improved zoom and pan behavior
Smoother, more precise panning on the canvas and new ⌘+ and ⌘- keyboard shortcuts to quickly zoom in and out.
Added OpenAI support (bring-your-own API key)
Connect your own OpenAI API key for translations. Plus reduced panning speed and improved translation language selection UI.