# InjectionIII

Re-write of Injection for Xcode in (mostly) Swift

Repository: https://github.com/johnno1962/InjectionIII
Canonical: https://ross.abutalabs.com/products/injectioniii
Language: Objective-C
License: MIT
License Family: permissive
Topics: swift, eval, ios-simulator, injection, storyboard-injection, xcode, macos, hot-reload, remote-control, reverse-engineering
Last push: 2026-06-14T08:57:35+00:00

## Health v2 (maintenance only)
Score: 86/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 87, release rhythm 76, longevity 100
- inputs: {"age_days": 3224, "days_push": 80, "days_rel": 80, "gap_med": 35, "n_releases_24m": 6}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 4640, forks 348 (observed 2026-08-28T04:08:55.486003+00:00)

## What it is
InjectionIII is a macOS application that injects changes to Swift and Objective-C source code into a running iOS/tvOS/macOS app without rebuilding or restarting it. It dramatically shortens the edit-run cycle for Xcode developers by patching compiled code at runtime.

## Use cases
- speed up iOS development iteration times
- inject Swift code changes into a running app without rebuilding
- avoid full Xcode rebuilds when tweaking UI code
- live-update view controllers while the simulator is running
- reduce compile times during SwiftUI or UIKit development

## When to choose
- you develop iOS, tvOS, or macOS apps in Xcode and want near-instant feedback on code changes
- you want to iterate on UI layout and logic without waiting for full builds
- you work primarily in the iOS simulator

## When to avoid
- you need injection on a physical device (sandboxing prevents it)
- your project relies on adding new methods or classes at runtime, which is unsupported
- you use a very recent Xcode/Swift version that the tool has not yet been updated for

## Facets
- artifact type: application
- maturity: maintenance
- function: developer-tools, compiler
- domain: developer-tools, mobile-development, cross-platform
- platform: -
- tags: xcode, hot-reload, code-injection, swift, objective-c, ios-simulator, macos, ios

## Member repositories
- johnno1962/InjectionIII (main) score 86
- johnno1962/injectionforxcode (mirror) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:55.486003+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 2026-08-29T17:44:07.166557+00:00, confidence not recorded.
  - readme: https://github.com/johnno1962/InjectionIII (fetched 2026-08-28T04:08:55.486003+00:00, sha b09ecfe68322)
- Data as of 2026-08-30T08:39:29.467469+00:00.