Ross ROSS = Recommend OSS · open-source software intelligence for agents

pwn20wndstuff/Undecimus

unc0ver jailbreak for iOS 11.0 - 12.4 observed · 2026-08-28

github.com/pwn20wndstuff/Undecimus · C · BSD-3-Clause (permissive) observed · 2026-08-28

Health v2 · maintenance only

23/100

  • Activity 0
  • Release rhythm 8
  • Longevity 100
How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.

  • gap_med: n/a
  • age_days: 2918
  • days_rel: n/a
  • days_push: 1858
  • n_releases_24m: 0

Full methodology

Adoption not part of the score

6621 stars · 1285 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Undecimus is the open-source iOS app behind the unc0ver jailbreak, supporting iOS 11.0 through 12.4 on ARM64 devices. It applies kernel and userspace patches to jailbreak the device with full Cydia and Substrate support.

Use cases

  • jailbreak an iPhone or iPad running iOS 11 to 12.4
  • install Cydia and Substrate on a stock iOS device
  • rejailbreak after a reboot without losing data
  • migrate from another jailbreak tool without wiping data
  • repair corrupted core jailbreak packages via the built-in APT repo
  • run diagnostics on a jailbroken device

When to choose

  • you need to jailbreak iOS 11.0-12.4 on an ARM64 device
  • you want a fully open-source jailbreak with no DRM or installation restrictions
  • you want native Cydia support and stable kernel patches
  • you are migrating from another jailbreak and want to keep your data

When to avoid

  • your device runs iOS 13 or later
  • you need a jailbreak for non-ARM64 (pre-A7) devices
  • you want a semi-tethered or rootless jailbreak workflow
  • you are not comfortable with the risks of jailbreaking, such as bootloops or voided warranty

Facets

application · maturity maintenance

security reverse-engineering security apple-ecosystem operating-systems jailbreak ios-jailbreak unc0ver cydia exploit arm64 ios mobile

1 source

Member repositories

RepositoryRoleHealth v2
pwn20wndstuff/Undecimusmain23

For agents

markdown · JSON · MCP: product_card(name="pwn20wndstuff/Undecimus")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem