Cross-Platform VPN App Development

@AITSoft

Hello, I understand you need a VPN app that works exactly the same on Android, iOS, and Windows. It should let users pick servers easily, connect fast, and keep data safe without leaks. The app must have a server list that updates remotely, sort by ping, and filter options, plus a simple one-tap connect or auto-connect based on user settings like unsafe Wi-Fi. It should keep a kill switch active always so no data leaks if the connection drops. DNS inside the app also lets you set custom or local blockers. The app must support OpenVPN, WireGuard, L2TP, and HTTPS proxy protocols, allowing users to switch without logging in again. I will deliver store-ready builds, clean code with instructions, a simple branded design, and an admin guide on managing servers and updates. After delivery, I’ll fix any bugs for two weeks. I focus on clean, reliable code and have experience with VPN protocols. What specific features or rules do you want for the auto-connect option? What branding elements or colour schemes do you prefer for the app UI? Are there preferred server locations you want included first? Do you already have backend infrastructure or servers set up for this app? Would you like me to include any analytics or usage tracking inside the app? What specific features or rules do you want for the auto-connect option? Thanks,

@Curveballsol

Hello, As an accomplished iOS and Android developer, I, Syed Muhammad Masoom, bring an extensive skill set performing in cross-platform app development to your VPN project. Throughout our tenure at Curveball, my team and I have delivered top-notch mobile applications with a particular focus on performance, scalability, and most importantly, user-friendliness. These attributes align perfectly with your project needs. We understand the nuances and peculiarities each platform brings to the table, but we ensure that the core experience remains unified across devices. This can be witnessed in our past projects where we have developed apps - similar to what you require - focusing on uniformity in both appearance and functionality on different OS. Lets Chat

@a4logic

Hello, As the leader of a renowned web service provider company in Pakistan, we are well-equipped with the industry-leading skills and expertise you require for this project. Specifically specializing in Android and Mobile App Development, we have an extensive experience in creating robust and feature-rich applications. In fact, we have previously developed secure systems like VPNs that involved both WireGuard and OpenVPN protocols; this should ensure a smoother hand-over with clean, maintainable code - precisely as your acceptance criteria suggest. We take pride in our ability to offer incisive solutions to complex problems while ensuring the user experience remains seamless across platforms. Our promise to deliver excellent customer service extends beyond project completion. In addition to providing you with Store-ready builds and well-commented source code with build instructions, we will also furnish you with a complete admin guide that will allow you to easily add or retire servers, edit DNS defaults and initiate app updates. Furthermore, acknowledging the need for iron clad data protection in VPNs, our team will guarantee the app connects on every listed protocol, maintains the tunnel through sleep/roam events all while effectively enforcing the kill switch. Lastly, we value transparency and thus offer a two-week post-delivery bug-fix window just in case any unforeseen bugs crop up. We envisage working together not just as pr Thanks!

@DngPhgNam

⭐⭐⭐⭐⭐ ✅Hi there, hope you are doing well! I have developed cross-platform VPN apps before that seamlessly synchronized user experience across Android, iOS, and Windows with robust multi-protocol support including WireGuard and OpenVPN. The key to a successful VPN app lies in maintaining a secure, stable tunnel with zero leaks and consistent connectivity across all network changes based on my experience. Approach: ⭕ Build a unified UI for all platforms ensuring identical core experience ⭕ Implement server list management with remote refresh, sorting, and filtering by ping ⭕ Develop one-tap server selection and an advanced auto-connect feature ⭕ Integrate multi-protocol support (OpenVPN, WireGuard, L2TP, HTTPS Proxy) with credential persistence ⭕ Implement an always-on kill switch that survives network disruptions ⭕ Add DNS management for custom resolvers and blockers ⭕ Deliver store-ready builds, complete source code with docs, and branded UI ⭕ Provide an admin guide and offer a two-week post-release support for bug fixing ❓ Could you please clarify if you have preferred server infrastructure or should I design the server management component from scratch? I am confident in delivering a clean, maintainable, and secure VPN app tailored to your requirements with seamless cross-platform consistency. Looking forward to collaborating with you. Best regards, Nam

@CodeAnchors

Hello! I specialize in high-velocity VPN clients. To meet your requirements for WireGuard and OpenVPN without credential re-entry, I will implement a Centralized Key Management system within the app's secure enclave (Keychain/Keystore). I’ll build a custom Ping Engine that uses ICMP/TCP handshake bursts to provide the real-time sorting you need. My "Kill Switch" implementation doesn't just block traffic; it utilizes the native VpnService (Android), NEPacketTunnelProvider (iOS), and WFP (Windows Filtering Platform) to ensure zero leaks during network handovers. I have integrated WireGuard Go and OpenVPN 3 libraries into multi-platform apps—shall we start by discussing your backend API for the remote server list?

@juanjosec63

Hi, I have strong experience in Android, iOS, Windows app development, OpenVPN, WireGuard, and network security with cross-platform architectures and clean client-server integration patterns. I can build a consistent VPN application across all three platforms with protocol switching, remote server management, accurate ping handling, kill switch protection, and leak-safe connection logic that stays stable through sleep, roaming, and network changes. You can expect clear communication, fast turnaround, and a high-quality result that fits seamlessly into your existing workflow. Best regards, Juan

@haseebsidd07

Hey , I just went through the project description, and I see you are looking for someone experienced in Android, Linux, iPhone, OpenVPN, Software Development, App Store Optimization, Network Security and Mobile App Development. It instantly reminded me of a client who faced similar challenges, and I knew I had a tailor-made solution for it. Please review my profile to confirm that I have great experience working with these tech stacks. While I have few questions: • Is there anything else you’d like to add to the project details? • What’s the top hurdle you’re facing with this project? • What is the timeline to get this done? Why Choose Me? 250+ Projects. 5 Years. Zero Misses. My reputation is built on a single metric: Flawless Execution. While others promise quality, my last 100+ consecutive 5-star reviews prove it. I don’t just finish the job; I set the standard. Timings: 9am - 9pm Eastern Time (I work as a full time freelancer) The portfolio here is just the tip of the iceberg. To respect client confidentiality, my recent heavy-hitters aren't public, but I can share them 1-on-1. Click the 'CHAT' button, and I’ll send over the relevant samples immediately for your review. Regards, Abdul Haseeb Siddiqui.

@amaank66

Building a VPN isn’t just about connecting—it’s about reliability, security, and consistency across platforms, especially with features like kill switch and leak protection. I’ve worked with networked apps and protocol integrations where stability across devices and network changes is critical, and I’ll structure this as a shared core + platform-specific wrappers for performance and maintainability. Architecture approach Core logic (shared layer) • Server management (remote config, ping sorting, filters) • Protocol abstraction (WireGuard, OpenVPN, L2TP, HTTPS proxy) • Auto-connect rules + session handling Platform builds • Android (Kotlin + VpnService) • iOS (Swift + Network Extension) • Windows (WireGuard/OpenVPN services + native UI or Electron shell) Key features implementation • One-tap connect + auto-connect triggers (Wi-Fi rules, app launch) • Persistent kill switch (OS-level enforcement where possible) • DNS control (custom resolvers + in-app config) • Seamless protocol switching (shared credentials/session layer) Security & reliability • Leak protection (IP, DNS, WebRTC) • Stable reconnection on sleep/roaming • Accurate latency checks (ICMP/UDP fallback) Admin & delivery • Remote server config (JSON/API-driven) • Simple admin guide for server/DNS updates • Store-ready builds + full source + documentation Best regards, Amaan Khan L. (CUBEMOONS PVT.)

@ayesha86664

Hi there! You’re building a cross-platform VPN and the real challenge is keeping a consistent, leak-free experience across Android, iOS, and Windows while managing multiple protocols and auto-connect rules—that is exactly where most apps struggle. I recently delivered a multi-protocol VPN client integrating WireGuard and OpenVPN that handled server selection, kill-switch enforcement, and DNS management, giving users a seamless connection with zero leaks and robust failover. My experience with mobile app security and network protocols ensures reliability across platforms. I will build your VPN app with one-tap server selection, protocol flexibility, always-on kill switch, and fully tested leak-free tunnels, then provide store-ready builds and a complete admin guide. Check our work: https://www.freelancer.com/u/ayesha86664 Do you have a preferred backend or server management system for the VPN nodes, or should I design that from scratch? I am ready to start — just say the word. Best Regards, Ayesha

@DigitalNightOwl8

Hello Already have something live to show you I am professional mobile software engineer with skills including Web Design, PHP, Website Development, Content Writing, Elementor, HTML, WordPress and Website Design. Please send a message to discuss more about this project. Always happy to hear from you Thanks

@SmartCodeDev

Hello I can build your full-featured VPN app for Android, iOS, and Windows with a consistent and secure user experience. Users will be able to select servers, auto-connect based on rules, and connect with one tap. Server list will support remote updates, real-time ping sorting, and filtering. I will implement a strong kill switch that prevents any traffic leaks during network changes. Custom DNS management will be included for private resolvers or blocking. Protocols supported: OpenVPN (TCP/UDP), WireGuard, L2TP, and HTTPS Proxy with seamless switching. The app will maintain stable connections across sleep and network transitions. You will receive APK, TestFlight build, Windows installer, and full source code. Clean UI, admin guide, and easy server management included. 2-week bug-fix support after delivery. I have experience with VPN apps and can ensure leak-free, stable performance.

@SalinaSof30

Hello, I understand you need a secure, full-featured cross-platform VPN app (Android, iOS, Windows) with a consistent user experience, multi-protocol support, and strong leak protection. I am a Full-Stack Developer with 8+ years of experience in network-based applications and have worked on secure systems integrating protocols like WireGuard and OpenVPN, focusing on performance, reliability, and clean architecture. I can deliver: Cross-platform VPN app with unified UX (connect, auto-connect, server selection) Dynamic server list with ping-based sorting & filtering Protocol support: OpenVPN (TCP/UDP), WireGuard, L2TP, HTTPS proxy Always-on kill switch + DNS management (custom resolvers/blockers) Stable connection across sleep/roaming with leak protection (IP/DNS/WebRTC) Clean, well-documented code + admin guide for server & config management Store-ready builds (APK, TestFlight, Windows installer) The system will be modular and scalable, ensuring easy updates and future enhancements. I’m confident I can deliver a secure, high-performance solution aligned with your requirements. Looking forward to collaborating. Thanks, Sukrati

@SherozKhalid9

Hi! I specialize in cross-platform VPN application development, with over 9 years of experience building secure, leak-free VPN clients for Android, iOS, and Windows that deliver identical user experience across all platforms. I understand WireGuard, OpenVPN (TCP/UDP), L2TP, and HTTPS Proxy protocols deeply — including always-on kill switch implementation, DNS management, real-time ping calculation, auto-connect rules, and best practices for surviving network changes, sleep/roam events while passing strict IP/DNS/WebRTC leak tests and store reviews. Here's how I can help: * Build full-featured VPN apps for Android, iOS, and Windows with one-tap server selection, auto-connect, server list with real-time ping, and protocol switching without re-entering credentials. * Implement robust always-on kill switch, custom DNS support, and secure tunnel that blocks all traffic outside the VPN. * Deliver store-ready builds (APK, TestFlight IPA, Windows installer), branded UI, complete well-commented source code, build instructions, and admin guide for managing servers/DNS/updates. * Provide two-week post-delivery bug-fix support to ensure everything meets your acceptance criteria. Do you have your own server infrastructure ready (WireGuard/OpenVPN configs) or need me to suggest a backend setup? Any preferred tech stack — Flutter for UI consistency or native (Kotlin/Swift + .NET for Windows) for maximum performance? Best regards khalid

@mubeenm5026

With experience spanning over a decade, I have a deep understanding of how to design and build high-performing digital solutions, making me an ideal candidate for your Cross-Platform VPN App project. My team at Web Crest and I have a keen eye for detail in terms of user experiences. We can create a fully functional, easy-to-use VPN application that satisfies all your specified functionality requirements while providing a lightweight and branded UI for users. Our proficiency in Linux, Mobile App Development, as well as Software Development means we're equipped to handle the complexity of your project. If you're worried about protocol support, have no fear; we've integrated both WireGuard and OpenVPN into our previous work and can seamlessly incorporate them into your app without compromising any data. Most importantly, I understand your need for clean, maintainable code, ensuring that your app – from its server list and automatic connectivity rules to its DNS management and leak tests – functions smoothly even through sleep/roam events and network changes. Furthermore, I guarantee delivery of store-ready builds, fully-commented source code with build instructions, a lightweight branded UI (logo, colour palette, icons), an admin guide explaining server management including DNS editing defaults and updates triggering, all with a two-week post-delivery bug-fix window.

@Hubready

Hello! This is James from Hollywood. I carefully reviewed your project on developing a full-featured VPN application for Android, iOS, and Windows. I have over 15 years of experience in software development, especially in mobile app development and network security, so I truly understand the technical needs and challenges involved. To ensure I deliver precisely what you envision, could you please clarify the following questions? 1. Are there specific security protocols or features you want prioritized in the VPN app? 2. How do you envision the user experience across the different platforms? My approach to this project would include clear communication and structured milestones, ensuring we stay aligned throughout the development process. I’ve previously built secure mobile apps that integrate seamlessly with backend systems and provide a smooth user experience. I have a solid track record in mobile development, including projects like a privacy-focused social app and a secure file-sharing platform. I also participate in the Shopify Partner Program since 2016, where I’ve developed various themes and apps that emphasize user security. I’m excited about the possibility of collaborating with you to create a top-notch VPN application that meets your goals. Let’s chat soon to discuss this further!

@cindyviorinar

Hi there, I’ve read your Cross-Platform VPN brief and can deliver a secure, identical experience on Android, iOS and Windows. I’ve built production VPN clients integrating WireGuard and OpenVPN and will implement platform-native tunnels (VpnService on Android, NEPacketTunnelProvider on iOS, and a lightweight Windows service) to ensure persistent, leak-free connections and a resilient kill switch that survives roaming and sleep. Server lists will be remotely managed (JSON), sorted by live pings measured client-side, and filtered before connect. Protocol selection is stored per-server so users won’t re-enter credentials. DNS control, custom resolvers and local blocking are built into settings. I’ll supply store-ready builds, commented source, a branded UI, an admin guide, and a two-week bug-fix window. I can start immediately and deliver end-to-end in ~21 days. Do you already host a server list API (or should I build a lightweight server endpoint) and which auth method do your servers use (username/password, certs, or token)? Best regards, Cindy Viorina

@jordanrafael7

✅ Hi – I’m Jordan, experienced in cross-platform networking apps and VPN development. I can build your full-featured VPN app for Android, iOS, and Windows with a consistent, secure, and leak-free user experience across platforms. I focus on maintainable code and production-ready builds. ✅ Proposed Approach: Step 1 – Core Tunnel & Protocols: Implement OpenVPN (TCP/UDP), WireGuard, L2TP, and HTTPS Proxy. Ensure users can switch protocols seamlessly without re-entering credentials. Include kill-switch and DNS management per your specs. Step 2 – Server List & Connectivity: Remote refreshable server list, sorted by real-time ping. Auto-connect rules (app launch, unsafe Wi-Fi, etc.) with one-tap server selection. Accurate ping measurement and protocol selection UI. Step 3 – Cross-Platform UI: Lightweight, branded UI for Android, iOS, and Windows. Consistent design: logo, color palette, icons, one-touch connect. Responsive and intuitive layout for all devices. Step 4 – Admin & Maintenance: ✅ Tech Stack Recommendation: Mobile: React Native or Flutter with native bindings for WireGuard/OpenVPN SDKs Windows: Electron + native VPN SDKs Secure storage for credentials, proper threading to maintain tunnels, and background connectivity handling. I can start immediately and will ensure full leak protection, seamless protocol switching, and a polished user experience across all platforms. Thanks.

@Ashnasajid

Hi, I can do this. I have extensive experience in developing full-featured VPN applications across Android, iOS, and Windows platforms. My approach ensures a consistent user experience, allowing seamless server selection and secure connections. I will implement the required functionalities, including a dynamic server list, one-tap connection, an always-on kill switch, and DNS management. Supporting OpenVPN, WireGuard, L2TP, and HTTPS Proxy will be prioritized, ensuring users can switch protocols without re-entering credentials. Deliverables will include store-ready builds, well-commented source code, a lightweight branded UI, and an admin guide for server management. I will also provide a two-week post-delivery bug-fix window to ensure stability. I am committed to clean, maintainable code and will ensure all acceptance criteria are met, including passing leak tests. Looking forward to collaborating on this project. Ashnasajid

@dmytroy7

Hi, there. I read your project, I know how to handle it, and I won't waste your time. In my opinion, developing a seamless cross-platform experience for your VPN application is crucial to ensure users can effortlessly switch between Android, iOS, and Windows. I have extensive experience in building VPN applications that integrate OpenVPN and WireGuard protocols, making me confident in maintaining the security and performance you desire. For this project, I'll use a robust tech stack including React Native for UI, along with Node.js for backend scripting and Docker for containerized deployments. My approach involves initial planning to define wireframes and user flows, executing development in agile sprints, and thorough testing across all platforms. I will collaborate closely with you to ensure every feature, from the server list to the kill switch, is flawlessly implemented. Please DM me and let's discuss your project in details. Dmytro