ButterKit

ButterKit is a native macOS application designed to simplify and automate the App Store publishing workflow for Apple developers. Tailored specifically for those who create and manage mobile applications, ButterKit enables users to effortlessly capture screenshots directly from the Xcode Simulator and place them into stunning photorealistic 3D device frames. With the ability to translate app metadata into all 50 App Store Connect languages using advanced AI models, ButterKit removes the hassle often associated with localization. This powerful tool also integrates seamlessly with the App Store Connect API, allowing developers to upload their polished screenshots and metadata with just a click. Whether you are starting from professional templates or building your designs from scratch, ButterKit is designed for efficiency. It links entire folders for input and output, making it a natural fit for CI/CD pipelines and Fastlane workflows. Created by a solo developer for developers, ButterKit aims to make the app publishing process smooth and efficient.

Screenshot Capture Tool

ButterKit provides a powerful screenshot capture tool that integrates directly with Xcode and the Simulator. This unique feature allows developers to capture high-quality screenshots directly from their application interface, saving time and enabling rapid design iterations.

Photorealistic 3D Device Frames

With ButterKit, you can showcase your app in stunning 3D device frames. The app offers a range of photorealistic devices that are easy to customize, allowing you to create polished and professional screenshots that stand out in the App Store.

Instant Translation

ButterKit eliminates the daunting task of localization by offering instant translation for app screenshots and metadata into all 50 App Store languages. This feature ensures that your app is accessible to a global audience, enhancing your app's visibility in local markets.

Direct Upload to App Store Connect

Once your designs are ready, ButterKit allows for direct batch upload to App Store Connect. This streamlined process ensures that your screenshots and metadata are organized and uploaded in the correct order, saving you time and reducing the chance of errors.

Efficient App Launches

Developers can use ButterKit to prepare for an efficient app launch by quickly capturing and designing high-quality screenshots in multiple languages. This ensures that their app is appealing to users across different markets right from day one.

Streamlined Localization Process

For developers targeting international audiences, ButterKit simplifies the localization process. By translating app metadata into various languages in seconds, developers can ensure their app reaches users in their native languages, improving engagement and download rates.

Continuous Integration/Continuous Deployment (CI/CD)

ButterKit integrates seamlessly with CI/CD pipelines, allowing developers to link entire folders for input and output. This feature makes it easy to automate the screenshot generation process, saving time and effort during app updates and releases.

Enhanced Marketing Strategies

Developers can utilize ButterKit's stunning 3D device frames and professional templates to create eye-catching marketing materials. This can help improve conversion rates and attract more users to their app by presenting a polished image in promotional efforts.

What platforms does ButterKit support?

ButterKit is specifically designed for macOS and is optimized for use with Apple development tools, making it an ideal choice for developers within the Apple ecosystem.

Can I use ButterKit for free?

ButterKit offers the ability to translate app metadata into 18 languages for free using on-device Apple Silicon. For access to all 50 App Store languages, users will need to bring their own AI translation key.

Is there a learning curve for new users?

ButterKit is designed with a user-friendly interface that minimizes the learning curve. Most users find they can quickly navigate the app and utilize its features without extensive training.

How does ButterKit integrate with Fastlane?

ButterKit can link entire folders for input and output, making it a perfect companion for Fastlane workflows. This integration allows developers to automate the screenshot generation process efficiently, fitting seamlessly into existing CI/CD pipelines.