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We are seeking experienced iOS and Android developers to assist in completing and optimizing our iOS VPN application. The developer will need to synchronize all features and logic from the reference template (Android version) to the iOS version, address existing issues in the iOS app, and update and optimize backend code to ensure compatibility and performance with the iOS client. Pre-Development Requirements (Must Complete): To ensure development quality and feature consistency, all developers must complete the following steps before starting coding: Download and thoroughly experience the reference template: This is a crucial step to understand project requirements. Please download the reference template from Google Play and fully experience all features, including connection flow, settings options, UI interactions, etc. Download link: [login to view URL] Screenshot for reference: During the experience, it's recommended to take a screenshot of the main page as a development reference for UI design comparison. Project Requirements 1. Feature Synchronization Sync all functionalities and logic from the reference template (Android VPN version) to the iOS version. Ensure that the user experience on iOS aligns with that of the reference template. During development, please continuously refer to the downloaded reference template application to ensure each feature implementation is consistent with the reference template. It is recommended that when developing each feature module, first compare it with the corresponding feature in the reference template before coding. Feature Comparison Verification: When developing each feature, please compare it with the corresponding feature in the reference template to ensure UI elements, interaction logic, animation effects, etc. are consistent with the reference template. Continuous Reference: The reference template application should serve as the primary reference throughout the development process. Please keep the application on your device for easy access. 2. Issue Resolution Address and fix bugs in the current iOS VPN application, such as connection instability, UI misalignment, and unresponsive functionalities. Improve the app's stability and overall user experience. 3. Backend Code Optimization Update and optimize backend code to meet iOS client requirements. Ensure compatibility with the iOS application and enhance overall performance and connection speed. 4. VPN Protocol Integration Integrate the VPN protocol into the iOS application. Ensure secure and stable VPN connections and optimize performance. 5. Membership Feature Integration Implement and synchronize membership management features, including user registration, login, subscription management, and access control on the iOS client, to match the reference template. Specific Responsibilities Feature Synchronization and UI Consistency: Sync all functionalities and UI elements from the reference template to the iOS version, ensuring a consistent user experience. Continuously refer to the downloaded reference template application during development to ensure the iOS version's design remains consistent with the reference template. Issue Resolution and Debugging: Diagnose and resolve bugs in the iOS app, including network connectivity issues, UI design problems, and functionality errors. Backend Code Update and Optimization: Optimize backend code for iOS compatibility, improving server response speed, security, and overall VPN service performance. VPN Protocol Integration and Optimization: Implement the VPN protocol integration on iOS, ensuring smooth and reliable VPN connections. Membership Functionality Development and Integration: Develop and integrate membership management features in the iOS application, ensuring seamless operation and consistency with the reference template. Security and Compatibility Optimization: Ensure the application complies with iOS security and privacy standards and passes the App Store review process. Optimize both client and server-side security and stability. Qualifications Extensive iOS or Android Development Experience: Proficiency in Swift, Objective-C (iOS) or Kotlin, Java (Android), with significant experience in mobile app development, including VPN-related projects. VPN Protocol Integration Experience: Familiarity with VPN protocol and experience integrating VPN protocols on iOS or Android platforms. Backend Code Optimization Skills: Ability to update and optimize backend code for mobile applications, ensuring efficient data transmission and VPN connection stability. Problem-Solving Ability: Expertise in identifying and fixing issues in iOS or Android applications, particularly related to network connectivity, UI optimization, and functionality tuning. Preferred Qualifications VPN Application Development Experience: Experience developing and releasing VPN applications on iOS or Android. Backend Development and Optimization Experience: Experience optimizing backend code to enhance server performance and security. Cross-Platform Synchronization Experience: Experience in syncing features between different platforms (iOS and Android) to ensure consistency in functionality and logic. Work Mode Remote Work with Supervision: The developer will work on their own device, but we will use remote tools to monitor and review progress in real-time, ensuring the project stays on track and issues are addressed promptly. Continuous Reference Template Comparison: During development, developers need to continuously refer to the downloaded reference template application to ensure each feature implementation is consistent with the reference template. We will verify against the reference template during code reviews. Timely Communication and Reporting: Regular updates and effective communication are crucial. We expect consistent progress reports and the ability to adjust development focus based on project requirements. Reports should include comparison with the reference template.
Projekt-ID: 40227535
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Aktiv vor 23 Tagen
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11 Freelancer bieten im Durchschnitt $107 USD für diesen Auftrag

Hi There!!! ★★★★ (iOS & Android VPN Application Development & Optimization) ★★★★ I understand you need your iOS VPN app fully synced with the Android reference template, existing iOS bugs fixed, backend optimized, VPN protocol integrated, and membership features implemented to ensure stable and smooth user experience. The focus is on feature parity, performance, and security. Services 24*7 available for discussion(reply in a few hours) Ui & UX design with unlimited revisions Deployment Support Source code will be provided at the end of the project 90-days support for bug fixing With 9+ years in iOS & Android development, I’ve successfully worked on VPN apps, backend optimization, and cross-platform synchronization. I’ll first explore the Android template in detail, then implement and test each feature on iOS using Swift, optimize backend performance, and ensure VPN connections and membership management work flawlessly. Looking forward to discussing this project and delivering a high-quality VPN app. Warm Regards, Farhin B.
$111 USD in 11 Tagen
6,4
6,4

Hello Dear! I write to introduce myself. I'm Engineer Toriqul Islam. I was born and grew up in Bangladesh. I speak and write in English like native people. I am a B.S.C. Engineer of Computer Science & Engineering. I completed my graduation from Rajshahi University of Engineering & Technology ( RUET). I love to work on Web Design & Development project. Web Design & development: I am a full-stack web developer with more than 10 years of experience. My design Approach is Always Modern and simple, which attracts people towards it. I have built websites for a wide variety of industries. I have worked with a lot of companies and built astonishing websites. All Clients have good reviews about me. Client Satisfaction is my first Priority. Technologies We Use: Custom Websites Development Using ======>Full Stack Development. 1. HTML5 2. CSS3 3. Bootstrap4 4. jQuery 5. JavaScript 6. Angular JS 7. React JS 8. Node JS 9. WordPress 10. PHP 11. Ruby on Rails 12. MYSQL 13. Laravel 14. .Net 15. CodeIgniter 16. React Native 17. SQL / MySQL 18. Mobile app development 19. Python 20. MongoDB What you'll get? • Fully Responsive Website on All Devices • Reusable Components • Quick response • Clean, tested and documented code • Completely met deadlines and requirements • Clear communication You are cordially welcome to discuss your project. Thank You! Best Regards, Toriqul Islam
$110 USD in 5 Tagen
5,4
5,4

iOS & Android VPN Application Development & Optimization on I’m a full-stack software engineer with expertise in React, Node.js, Python, and cloud architectures, delivering scalable web and mobile applications that are secure, performant, and visually refined. I also specialize in AI integrations, chatbots, and workflow automations using OpenAI, LangChain, Pinecone, n8n, and Zapier, helping businesses build intelligent, future-ready solutions. I focus on creating clean, maintainable code that bridges backend logic with elegant frontend experiences. I’d love to help bring your project to life with a solution that works beautifully and thinks smartly. To review my samples and achievements, please visit:https://www.freelancer.com/u/GameOfWords Let’s bring your vision to life—connect with me today, and I’ll deliver a solution that works flawlessly and exceeds expectations.
$100 USD in 7 Tagen
5,2
5,2

With over 7 years of experience in software development and specific proficiencies in Java (in addition to Node.js, React Native, and Flutter), I am confident in my ability to take on your iOS and Android VPN application project. Having worked on numerous web and app development projects, I have honed my skills in not only understanding client requirements but also exceeding their expectations by ensuring development quality, feature consistency, and overall user satisfaction. My comprehensive background and the wide language skillset enables me to quickly adapt to new technologies and contribute effectively to diverse projects. Lastly, as an expert in backend code optimization and cloud computing (including AWS, Microsoft Azure, Google Cloud Services), I understand how important backend integrity is for a seamless frontend experience. I guarantee not only quick updating & optimizing of backend codes but also improving server response speed, security, and overall VPN service performance. I maintain complete transparency throughout the project which further ensures that our collaboration is smooth-moving and brings successful results. Let's make your VPN application error-free and robustly secure together!
$30 USD in 7 Tagen
5,7
5,7

✋ Hi There!!! ✋ The Goal of the project:- Complete and optimize the iOS VPN application by synchronizing all features with the Android version, resolving issues, and enhancing backend performance for a stable user experience. I have carefully read your project description and understand the need for feature synchronization, UI consistency, and secure VPN protocol integration. I am the best fit because I have extensive experience delivering cross-platform VPN applications with optimized backend and seamless user experience. • Sync all functionalities and UI elements from the Android reference template to the iOS app • Diagnose and fix bugs including connection instability, UI misalignment, and unresponsive features • Update and optimize backend code and integrate membership management for consistent operation I provide UI design, database management, testing, and full source code delivery at project completion. With 9+ years experience as a full stack developer, I have successfully delivered multiple iOS and Android VPN apps. Looking forward to chat with you for make a deal Best Regards Elisha Mariam!
$110 USD in 10 Tagen
5,1
5,1

Hi! I can sync your iOS VPN app to match the Android reference template exactly, fix all existing issues, optimize backend performance, and integrate VPN + membership features for a stable App Store–ready release.
$30 USD in 3 Tagen
3,1
3,1

✅✅✅Understood well what u want✅✅✅ I've gone through your project description, and I must say it's right on my professional alley. I've got extensive experience in Backend Development, iOS Development, and Java, which are all highly relevant to this project. Not only am I well-versed in VPN application development on both iOS and Android platforms, but also proficient in backend code optimization for enhanced compatibility, performance, and connection speed - just what you need! Besides syncing all functionalities from the reference template to the iOS version and resolving bugs therein, I will diligently check for UI elements consistency between the two apps - even taking screenshots at each feature module stage for optimal comparison. I recognize how critical such attention to detail is in ensuring that the user experience aligns seamlessly with your reference template. Lastly, my impeccable problem-solving skills honed over years of developing secure, scalable software solutions make me most adept at integrating VPN protocols into iOS applications. This includes optimizing server response speeds, ensuring reliable connections, and addressing any security issues accordingly. With me on your team, you can expect clean, well-documented code that not only meets your current needs but also leaves room for future enhancements. So let's build a VPN app that truly impresses!
$140 USD in 4 Tagen
1,5
1,5

I will fully sync your iOS VPN app with the Android reference template by conducting a systematic side-by-side feature comparison before writing a single line of code. All connectivity issues and UI inconsistencies will be resolved through targeted debugging and protocol-level optimization for the iOS platform. I will refactor the backend integration to ensure seamless compatibility with iOS while boosting connection stability and server response speeds. Every membership and subscription flow will be rebuilt to mirror the Android version exactly, maintaining visual and functional parity across both platforms. Throughout development, I will maintain continuous reference to the live Google Play app and provide transparent remote progress reviews to guarantee complete feature alignment.
$30 USD in 1 Tag
0,0
0,0

Hello, I’m an experienced iOS & Android developer with strong expertise in Swift, Kotlin, and VPN protocol integration. I will sync all features from the Android reference app to iOS, ensuring UI, logic, and animations match perfectly. I’ll resolve current iOS issues, optimize backend code for performance and stability, and integrate membership functionalities securely. I always verify features against the reference template continuously and provide timely progress updates. Estimated timeline: 2–3 weeks; budget: $111. Looking forward to hearing from you. Thank you.
$111 USD in 14 Tagen
0,0
0,0

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