Apple Knowledge screenshot

Apple Knowledge

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Updated: 10 Jan 2026
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A collection of reverse engineered Apple things, as well as a machine-readable database of Apple hardware

Overview:

This product analysis examines the Apple Data Formats and Knowledge collection, which is a repository of reverse engineered Apple formats, protocols, and other interesting information. The goal of this collection is to provide resources for jailbreakers and hobbyists who are interested in exploring and modifying Apple products. The collection includes various tools, libraries, and documentation related to binary analysis and modification, as well as information about Apple prototypes, device lists, and kernel debugging. The repository also has guidelines for contributing to the collection and emphasizes the importance of not violating copyright laws.

Features:

  • Wide Range of Formats: The collection includes reverse engineered Apple formats and protocols, allowing users to gain insight into how Apple products work.
  • Tools for Binary Analysis and Modification: The repository offers a variety of tools and libraries for analyzing and modifying binary files, such as mootool, ktool, and IDA Disassembler.
  • Information on Apple Prototypes: Users can find information and resources about Apple prototypes, including the T2 Dev Setup and Apple 4CC.
  • Device Lists: The collection includes a device list that provides information on different Apple devices.
  • Kernel Debugging: Users can access resources for kernel debugging, including the Kernel Debug Kit and information on Mach and XNU.
  • Guides and General Information: The repository offers guides and general information on topics such as iOS tampering, reverse engineering, and T2 remote attack surface.

Installation:

To install the Apple Data Formats and Knowledge collection, follow these steps:

  1. Join the Discord server for the collection.
  2. Install the Homebrew Tap by running the following command:
brew tap hack-different/homebrew-jailbreak
  1. For information on maintaining the Tap, visit the homebrew-jailbreak repository.
  2. To contribute to the collection, make pull-requests with improvements, but ensure that the submissions do not violate copyright laws.
  3. For additional information and guidance on data formats, refer to the Data Format Guidance document.
  4. Updates and additions to the collection should automatically be reflected in the hack-different/apple-knowledge/_data directory.

Summary:

The Apple Data Formats and Knowledge collection is a comprehensive repository of reverse engineered Apple formats, protocols, and other valuable resources. It offers a wide range of tools and libraries for binary analysis and modification and provides information on Apple prototypes, device lists, and kernel debugging. The repository emphasizes the importance of adhering to copyright laws and provides guidelines for contributing to the collection. Overall, this collection is a valuable resource for jailbreakers and hobbyists interested in exploring and understanding Apple products.