Gravity DMG is designed specifically for macOS developers who need to package, sign, notarize, and distribute their applications. It serves as a comprehensive solution that replaces complex command-line tools like notarytool and hdiutil, providing an intuitive visual interface for creating professional disk images.

The tool offers several key features including a visual DMG editor with drag-and-drop simplicity and a library of space-themed backgrounds. It provides one-click notarization using Apple's modern notarytool API and handles secure signing of .app bundles with Hardened Runtime support while preserving entitlements. The application integrates with the system Keychain for secure credential storage and supports multiple compression formats including UDZO for compatibility, ULFO for speed, and UDBZ for maximum compression. Build templates allow automation of output naming with dynamic variables like ${VERSION} and ${DATE}.

Gravity DMG operates through an Autopilot Workflow that streamlines the entire distribution process. It's built as a native Swift application optimized for modern macOS systems, providing fast performance and seamless integration with Apple's security frameworks. The tool handles the complete pipeline from application packaging to notarization submission automatically.

The primary benefits include significant time savings by eliminating manual command-line work, enhanced security through Keychain integration, and professional-looking results with customizable visual styling. Use cases range from indie developers creating their first distribution packages to enterprise teams needing consistent, secure deployment workflows for macOS applications.

The target audience includes macOS developers, indie developers, macOS engineers, DevOps leads, and product managers who need to distribute macOS applications. The tool requires macOS 13.0 (Ventura) or later and is optimized for both Apple Silicon and Intel-based Macs. While primarily designed as a visual tool for hands-on finishing processes, it supports consistency through build template configuration files.