Cyanide

Cyanide can be installed on compatible iPhones and iPads without a traditional jailbreak.

Before downloading, check your iOS version and make sure your device supports the DarkSword-based customization method.

Installation steps:

1. Open Settings → General → About on your iPhone or iPad.
2. Check your device model and installed iOS version.
3. Make sure your firmware is supported by Cyanide.
4. Visit the maintained Cyanide GitHub releases page.
5. Select the latest compatible Cyanide release.
6. Download the available IPA file.
7. Save the IPA to your device or computer.
8. Open a compatible IPA signing or sideloading tool.
9. Follow its instructions to install Cyanide.
10. Open Cyanide from your Home Screen.
11. Read any compatibility warnings shown by the app.
12. Open the available tweak installer or customization section.
13. Select a supported tweak.
14. Follow the instructions to apply the selected change.
15. Check your Home Screen or system interface to see the result.

How to install Cyanide without a computer

If you already have a compatible on-device IPA installation method, you may be able to install Cyanide directly.

Otherwise, you can use a supported computer-based signing tool to install the IPA.

Does Cyanide require a jailbreak?

No. Cyanide uses the DarkSword kernel exploit to apply supported changes without installing a full jailbreak.

Important: Avoid installing several experimental tweaks together. Start with one supported tweak and confirm it works before applying another.

Back up important data before using kernel-based customization tools.

Cyanide offers different customization and system tools for supported iPhones and iPads.

Home Screen Customization

Use supported tweaks to change app icon sizes, Home Screen spacing, dock settings and layout options.

Status Bar Tweaks

Customize supported status bar features using available packages and settings.

SpringBoard Customization

Cyanide includes tweaks that change selected parts of the iPhone interface, including the app switcher and other visual elements.

JavaScript Tweaks

Cyanide includes tools for importing compatible JavaScript tweaks and loading supported tweak repositories.

File Browser

The maintained fork provides a file browser with file viewing, searching, copying and other supported management features.

Cache Cleaner

Recent releases include a tool for finding and clearing selected app caches and temporary files.

Wallet Card Artwork

Cyanide v1.11.0 includes a Wallet Card Art feature for changing the appearance of compatible Wallet cards. This is cosmetic and does not change payment information.

JIT Enabler

The latest maintained version includes a JIT Enabler for compatible applications installed using development profiles.

Supported iOS Versions

1. iOS 17.0–17.7.x: Within the developer's supported iOS 17 range.
2. iOS 18.0–18.7.1: Supported on compatible devices.
3. iOS 18.7.2 and later in the iOS 18 family: Not supported.
4. iOS 26.0–26.0.1: Supported on compatible devices.
5. iOS 26.1 and later: Not supported.
6. iOS 27: Not supported.

Supported Devices

Cyanide supports compatible iPhones and iPads running the listed firmware, excluding A19 and M5 devices.

The maintained fork reports successful testing on iPhone 16 Pro Max running iOS 18.5, iPhone 15 Pro Max running iOS 17.3.1 and selected M-series iPads.

Important Limitations

Cyanide is not a full jailbreak. It does not install a traditional rootful or rootless jailbreak environment.

Many tweaks are temporary and can disappear after a respring or reboot.

Some devices, particularly A18 and M4 models, can experience unexpected restarts during exploit attempts.

If Cyanide is not installing or its tweaks are not working, try these simple checks.

Cyanide IPA Is Not Installing

Make sure the IPA file downloaded completely. Check your signing certificate and installation method.

Cyanide App Is Not Opening

The application signature may have expired, or the installation may be incomplete. Try refreshing or reinstalling the IPA using a trusted method.

Cyanide Says Unsupported Device

Check your processor and iOS version. A19 and M5 devices are not supported by the documented exploit.

Cyanide Is Not Working on iOS 26.1

The required kernel vulnerabilities were patched in iOS 26.1. Cyanide cannot use its documented exploit on this version.

Cyanide Is Not Working on iOS 18.7.2

iOS 18.7.2 contains fixes for the kernel vulnerabilities used by Cyanide. It is outside the supported range.

Tweak Is Not Applying

Check whether the tweak supports your iOS version. Some tweaks work only on particular releases.

Cyanide Tweaks Disappear After Respring

Many Cyanide changes are applied in memory. A respring can remove these changes, requiring them to be applied again.

Cyanide Tweaks Disappear After Restart

Restarting normally clears temporary kernel-based modifications. Open Cyanide again and reapply compatible tweaks if needed.

iPhone Restarts During Exploit

Some devices may experience an exploit failure or kernel panic. If this happens repeatedly, stop attempting the exploit and review the developer's device-specific warnings.

Home Screen Icons Look Wrong

A selected layout tweak may be incompatible with another modification. Disable the affected tweak or restore its original settings.

JavaScript Tweak Is Not Working

Check that the script is compatible with your Cyanide version. Do not run JavaScript files from unknown sources.

SpringBoard Keeps Crashing

An experimental tweak may be causing instability. Avoid repeatedly applying the same tweak and use the available recovery steps.

File Browser Cannot Access a Folder

Some file operations depend on the available exploit permissions. Not every system location or action will work on every device.

Safety Tips

Back up important information before installation. Use trusted IPA files, avoid unknown JavaScript repositories and do not experiment with sensitive system settings on a device containing important data.