How do I request a trial?

Download App Center, choose the General edition or the Uni-app edition, then apply for a license on the registration-code page.

What is the difference between Windows and macOS builds?

macOS (Apple Silicon / Intel) has full feature support and talks to the Xcode flow. The Windows build is partial; complete compile and submission still needs a Mac.

Which pricing plan should I choose?

Use the single-app trial plan for one Bundle Id. Choose monthly starter or enterprise if you need multiple apps and isolation sets. Enterprise includes more machines and support. IPA analysis and submission help are sold separately. See Pricing.

Can I still collect crash logs after obfuscation?

Yes. Turn on Restore dSYM file in the tool’s run settings to map obfuscated symbols back to original names. Code expansion still lets you restore the stack, but not the exact source line. See the dSYM article in the blog.

Can I debug the obfuscated project in Xcode?

Yes. The tool integrates with Xcode so you can debug the obfuscated binary. Exclusion rules are in the online docs.

Do you support Unity, Flutter, and Cocos?

Yes. Languages include c/c++/objc/swift/dart, plus Unity3D, Flutter, SwiftUI, and Cocos-exported iOS projects. Uni-app uses IPA hardening. IR-level protection of a Framework / SDK or the App binary uses Crab Directed Hardening (Framework hardening and App hardening are separate entries). See the matching solution pages.

What happens to resources and the runtime SDK?

Resources can be renamed, signature-broken, and encrypted. The runtime support SDK uses independent characteristics per build to reduce cross-app interference. Exact scope follows your project config and the docs.

What is Crab Directed Hardening, and how does it relate to OLLVM and project obfuscation?

Crab Directed Hardening is an IR-level path in the same family as OLLVM (control-flow flattening, bogus control flow, instruction substitution). It is not a fork of public OLLVM, and not Xcode-project confuse or uni-app IPA hardening. Use Framework hardening and write 「Framework hardening」 for an SDK; use App hardening and write 「App hardening」 for the App binary.

Crab iOS Obfuscation

Protect Code Security Solve 4.3 Issue Easy to Use Ready to Submit After Build Easier Approval Solve 2.3.1 Issue

AppStore 4.3 / AppStore 2.3.1

This tool adopts a brand new technical approach, starting from the compilation system level, supporting the latest version of Xcode, achieving ready-to-submit after compilation. It supports iOS projects related to c/c++/objc/swift/dart, fully supporting technologies such as cocos2d, cocos2d-x, cocos-creator, cocos-quick, Unity3D, swiftUI, flutter. It can also solve AppStore 4.3 / AppStore 2.3.1 issues, protecting your App security.

Version Iterations

Adapted Applications

160+ Total Clients Served

Since 2018, the tool has undergone 175 iterations, evolving from source code version to the current universal version. Starting from internal company use to later connecting with external customers, we have gone through a long journey. We have released more than 120 free trial versions externally, finally achieving obfuscation support for the full iOS platform technology stack.

Learn More

Functions

Services

Language Obfuscation

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Supports obfuscation, source code expansion, and constant encryption for various types, fields, functions, etc. in c/c++/oc/swift/dart languages.

Comprehensive Languages

Call Stack Obfuscation

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Supports call stack obfuscation for c/c++/oc/swift/dart languages, with obfuscation rate over 95%, capable of everything.

Better Effect

Dual Symbol Table Strategy

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After obfuscation, the dSYM file can be restored after submission, without affecting online crash log collection.

Continuous Iteration

Resource File Obfuscation

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Can rename, destroy signatures, and encrypt any resource files without affecting program stability.

Professional Protection

Seamless Xcode Debugging

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Can directly debug obfuscated project code in Xcode, with powerful debugging assistance.

Easy Debugging

Comprehensive SDK Isolation

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The runtime support SDK of the obfuscation program has independent characteristics for each build, ensuring users do not interfere with each other.

Safe & Reliable

Installers

Choose Your Platform

Please choose the installer that matches your system.

macOS

Full feature support (Apple Silicon)

CPU Architecture：arm64
OS Requirement：macOS 11+

Download macOS arm64

macOS

Full feature support (Intel)

CPU Architecture：x86_64
OS Requirement：macOS 11+

Download macOS x86_64

Windows

Partial feature support

CPU Architecture：x86_64
OS Requirement：win10 / win11

Download for Windows

Pricing

Pricing Plans

Trial Version (Single App)

A solution limited to a single Bundle Id, only for publishing one application.

^¥2999

One-time Payment
One Submission Guidance
5-Year Tool License
Limited Supply

Buy Now

Starter Edition (Monthly)

No Bundle Id limit, 3 isolation solutions, non-repeating features.

^¥800-1600

Monthly Payment
Limited to One Machine
Technical Support (Optional)
All‑in‑One Toolkit (Optional)

Buy Now

Enterprise Edition (Monthly)

No Bundle Id limit, 9 isolation solutions, non-repeating features.

^¥2199

Monthly Payment
Limited to Two Machines
Technical Support
All‑in‑One Toolkit

Buy Now

Duplicate Detection Service (Per Time)

One IPA static analysis, can generate a report, clearly showing various indicators.

^¥299

Symbol Table Comparison
Program Resource Comparison
Dependent SDK Information
Sensitive Word Information

Buy Now

App Submission Service

Our professional team will submit your obfuscated app to the App Store for a smoother approval process.

面议

No fee if approval fails
One free after-sales support
Delivery of relevant configurations
Tool usage guidance

Buy Now

Additional Device License

Increase build device limit (temporary device license), suitable for customers with multiple Mac devices

^¥500

Cleared on Renewal
Validity Period Equals Renewal Duration

Buy Now

History

Important Version History

Getting Started

v0.1 Version

Supports source-level obfuscation for Objective-C projects

2019 - Year End

The first internal version, used internally in the company, only supported a few old social projects, when approval was not so strict.

v0.5 Version

Supports simple Swift projects and OC mixed projects

2020 - 2021

The beginning of headaches, gradually discovering that language has become an obstacle, more and more problems, the tool is very difficult to use.

v1.1 Version

Adapted to Cocos Family Series

2021 - 2022

Started receiving requests to publish game projects developed with cocos2d-x, cocos2d, cocos-quick and other technologies, so we began active testing and adaptation work.

Coming of Age

v1.3 Version

Adapted to Unity3d Projects

2022 - 2023

We perfectly support Unity3D projects too, it's not easy, during which we started the crazy path of technical routes.

v1.5 Version

Started supporting Xcode15 and adapting to Xcode16

2024 - 2025

MacOS upgrade is a big pitfall, making our team suffer again, please say hello to the Apple MacOS team for me.

v1.6 Version

Flutter Version Arrives

2024 - 2025

Never thought we would adapt Flutter projects, the technical routes for publishing have started to diverge in recent years, a new beginning!

User Experience

User Real Feedback

Reviews On

4.9/ 60 Reviews

"Thank you for your company's product, I no longer need to spend a lot of time modifying confusing obfuscated source code and finding bugs for days, this is so worry-free!"

Reviews On

4.9/ 60 Reviews

"Thank you for the free trial version, our APP successfully resumed publishing, my job is saved, thank you very much!"

Reviews On

4.9/ 60 Reviews

"Thank you for your company's product, after using this tool, my career entered an upward phase, I became a Team Leader."

I want to try an experience version first to see the effect

How should I apply?

Faq

Frequently Asked Questions

Supports various language mixed compilation c/c++/OC/OC++/swift/dart, all languages mixed compilation, no developer adjustments needed.

Static .a libraries and static frameworks can go through project obfuscation. To harden a Framework / SDK itself at IR (Crab Directed Hardening, same family as OLLVM), use the Framework hardening entry. A prebuilt Dynamic Mach-O with no IR left is not supported on either path.

Please rest assured to try, we have a large number of successful online cases, you can personally verify.

Project obfuscation covers static .a libraries and static frameworks. Dynamic Mach-O frameworks do not use that entry. If the Framework still compiles through LLVM and has IR, Crab Directed Hardening (IR-level, OLLVM-like) can be evaluated. A stripped dynamic library with no IR cannot.

The tool works at the build-system level on symbols, resources, and call stacks so each build can have independent characteristics, which helps with 4.3 and 2.3.1 class issues. Review still depends on whether the app itself complies. We do not promise approval.

See all frequently asked questions

Crab iOS Obfuscation

Protect Code Security Solve 4.3 Issue Easy to Use Ready to Submit After Build Easier Approval Solve 2.3.1 Issue

160+ Total Clients Served

Functions

Services

Language Obfuscation

Call Stack Obfuscation

Dual Symbol Table Strategy

Resource File Obfuscation

Seamless Xcode Debugging

Comprehensive SDK Isolation

Installers

Choose Your Platform

macOS

macOS

Windows

Pricing

Pricing Plans

Trial Version (Single App)

¥2999

Starter Edition (Monthly)

¥800-1600

Enterprise Edition (Monthly)

¥2199

Duplicate Detection Service (Per Time)

¥299

App Submission Service

面议

Additional Device License

¥500

History

Important Version History

Getting Started

v0.1 Version

v0.5 Version

v1.1 Version

Coming of Age

v1.3 Version

v1.5 Version

v1.6 Version

User Experience

User Real Feedback

Reviews On

Ivan

Reviews On

Simmons

Reviews On

Oscar

How should I apply?

Faq

Frequently Asked Questions

Does it support multiple language mixed compilation?

Does it support obfuscating binary files, such as .a or .framework?

Will obfuscated applications be detected?

Do you support Dynamic Frameworks?

Does obfuscation affect App Store review?

Contact Me

I'm interested ❤️, I want to buy your products and services!

^¥2999

^¥800-1600

^¥2199

^¥299

^¥500