Open-source mobile security testing suite for iOS and Android. Previously Passionfruit
Grapefruit is an open-source suite for testing the security of iOS and Android mobile applications by instrumenting running apps and exposing their behavior through a web interface. Security researchers use it to inspect, intercept, and modify app functions, files, and cryptographic operations. Catalogue add-ons extend workflows for operating Grapefruit.
Latest release v1.1.2 · 30 Mar 2026
2 files for Codex, OpenCode and Claude Code: grapefruit AGENTS.md, grapefruit CLAUDE.md — 440 tokens loaded in every session.
AGENTS.md A 4 tok CLAUDE.md A 436 tok These files are ChiChou/grapefruit's own configuration — they tell Codex, OpenCode and Claude Code how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.