# iosre/iOSAppReverseEngineering

The world’s 1st book of very detailed iOS App reverse engineering skills :)

Repository: https://github.com/iosre/iOSAppReverseEngineering
Canonical: https://ross.abutalabs.com/products/iosappreverseengineering
License: MIT
License Family: permissive
Last push: 2015-10-30T21:34:59+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4008, "days_push": 3960, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 4416, forks 463 (observed 2026-08-28T04:08:48.682214+00:00)

## What it is
An open-source book (MIT licensed) teaching detailed iOS app reverse engineering skills, covering concepts, tools like class-dump, Theos, Cycript, Reveal, IDA and LLDB, plus theory and practice chapters. It targets iOS enthusiasts, senior developers, architects, and reverse engineers from other platforms.

## Use cases
- learn iOS app reverse engineering from scratch
- understand iOS filesystem and file types not exposed to app developers
- learn to use tools like class-dump, Cycript, IDA and LLDB for iOS analysis
- study Objective-C and ARM assembly for reverse engineering
- analyze third-party iOS app architectures
- get started with the iOS jailbreak research community

## When to choose
- you want a structured, book-style introduction to iOS reverse engineering
- you are an iOS developer wanting deeper understanding of the platform internals
- you come from reverse engineering on other systems and want to learn iOS

## When to avoid
- you need up-to-date coverage of modern iOS versions and current tooling (content dates to ~2015)
- you need a hands-on tool rather than educational material
- you require guidance on non-jailbroken modern iOS workflows

## Facets
- artifact type: learning-resource
- maturity: abandoned
- function: reverse-engineering, security, developer-tools
- domain: reverse-engineering, security, apple-ecosystem, tutorials
- platform: -
- tags: ios-reverse-engineering, jailbreak, book, objective-c, arm-assembly, class-dump, theos, cycript, ida, lldb, ios, macos

## Member repositories
- iosre/iOSAppReverseEngineering (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:48.682214+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:21:00.706110+00:00, confidence not recorded.
  - readme: https://github.com/iosre/iOSAppReverseEngineering (fetched 2026-08-28T04:08:48.682214+00:00, sha d28ad77ea1c8)
- Data as of 2026-08-30T08:39:29.467469+00:00.