I will build or fix a secure android and ios mobile app

C
caotool
C
caotool
Caoye
build or fix a secure android and ios mobile app
Full Screen
build or fix a secure android and ios mobile app
Full Screen
Full Screen
build or fix a secure android and ios mobile appbuild or fix a secure android and ios mobile appbuild or fix a secure android and ios mobile app

About this gig

About this Gig


I am a mobile app developer with a strong background in app security. I build and fix Android and iOS applications with clean architecture and secure API integration.


What I can do for you:

  • Fix bugs and crashes in existing Android or iOS apps
  • Develop new features or screens for your mobile app
  • Build cross-platform apps using Flutter or React Native
  • Integrate APIs securely (authentication, data handling)
  • Review and harden your app against common vulnerabilities

Why work with me:

  • Security-first mindset: your app is built to resist common attacks
  • Source code included in every package
  • Clear communication and on-time delivery
  • Revisions included so you are satisfied with the result


Please contact me before ordering so I can confirm your requirements, tech stack, and timeline. This helps me deliver exactly what you need.

  • App type

    • Native

  • Programming language

    • Java
    • JavaScript
    • Kotlin
    • Objective-C
    • Python
    • TypeScript
    • HTML

  • Frameworks

    • Flutter
    • SwiftUI
    • Node.js
    • React Native

  • Purpose

    • Restaurant
    • Social networking
    • Entertainment
    • Medical
    • Lifestyle
    • Productivity tools
    • Custom
    • Ecommerce
    • Gaming
    • Trading

  • Tools

    • Android Studio
    • Xcode
    • Visual Studio Code
    • Visual Studio

  • Expertise

    • Cross browser/Device compatibility
    • Localization
    • Security
    • Design
    • API integration
    • Compatibility

Get to know Caoye

Caoye
  • FromChina
  • Member sinceOct 2023
  • Avg. response time1 hour

  • Languages

    Chinese
Mobile Security & Reverse Engineering: Proficient in Android/iOS reverse engineering (IDA, JADX, Frida, Xposed). Skilled in app hardening, obfuscation, and shell protection. App Dev: Experienced in native Android (Kotlin/Java) & iOS (Swift/Obj-C), plus React Native and Flutter. Web Frontend: Proficient in HTML5, CSS3, JS/TS, Vue.js, and React. Mini-Programs: Expert in WeChat and multi-platform mini-program development. Tools: Proficient in HTTP/HTTPS, Charles, Wireshark, Git, and CI/CD pipelines.

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