ButterKit

ButterKit is a macOS app designed to assist developers in creating, localizing, and publishing App Store screenshots and metadata. It is ideal for indie founders and small teams who need to streamline the process of preparing polished marketing visuals for their iOS, iPadOS, macOS, watchOS, or visionOS applications without the hassle of traditional design tools.

What ButterKit does

ButterKit simplifies the workflow of app marketing by focusing on three main stages: capture, design, and translate/publish. Users can drag and drop images onto 3D device mockups, capture screenshots directly from Xcode Simulator, or link folders to automatically refresh designs. The app features a Metal-powered 3D rendering engine, allowing for professional templates and customizable layouts. Finally, it can translate and upload all assets to App Store Connect with ease, eliminating manual processes.

Who ButterKit is for

ButterKit is tailored for indie developers and small teams looking to efficiently create marketing materials for their apps. Those who often publish apps in multiple languages will find its translation capabilities particularly useful. However, larger teams or those requiring extensive collaboration features may find ButterKit less suitable for their needs.

Pricing & access

ButterKit operates on a free model, allowing users to access its core features without any upfront costs. Additional features may be available through a Pro version, but specific pricing details are not specified. The app also offers a 14-day refund policy and discounts for students, educators, veterans, and first responders.

Key features

• Capture screenshots directly from Xcode Simulator or drag and drop images onto 3D device mockups.
• Utilizes a Metal-powered 3D rendering engine for high-quality, editable device frames.
• Offers a community marketplace for additional templates and add-ons.
• Automatically translates screenshots and metadata into all 50 App Store languages.
• Uploads assets directly to App Store Connect via the official API.
• Includes a built-in Model Context Protocol (MCP) server for automation with AI coding agents.

Explore more ar/vr tools on EarlyHunt. Read the ButterKit launch story for editorial context.