aTunnel
Full-cycle development of a privacy-first VPN service — from secure backend infrastructure and native iOS client to multi-server deployment across the EU.
Privacy without compromise
Most VPN apps collect logs, use third-party analytics, and rely on outdated protocols that are easily detected and blocked. The goal was to build a service that's truly zero-log, uses a modern undetectable protocol, and delivers a seamless native iOS experience — all while passing Apple's strict App Store review.
End-to-end ownership
We handled every layer: VPN protocol selection, server infrastructure, API design, iOS development, and App Store submission. No third-party VPN SDKs — we built the tunnel stack ourselves using Xray-core with VLESS + REALITY, wrapped in a custom Swift binding via Network Extension.
Native SwiftUI client
Full-featured VPN client built entirely in SwiftUI with Network Extension for system-level integration. One-tap connect, real-time connection timer, data usage counter, server selection with live ping measurement, and built-in speed test — all with smooth animations and haptic feedback.
EU multi-server deployment
Containerized deployment across Germany and Finland with intelligent SNI-based traffic routing. A single port 443 entry point serves VPN traffic, API, and website simultaneously. VLESS + REALITY protocol makes traffic indistinguishable from regular Google HTTPS requests, bypassing DPI and censorship.
Production-ready VPN service
The platform is live on the Apple App Store, serving users with two EU server regions, sub-100ms latency, an undetectable VPN protocol that bypasses DPI and censorship, and zero third-party analytics — no tracking SDKs, no cookies, no telemetry.
Download on App StoreThe team did an excellent job. In just one week, they fully delivered a large turnkey project: designed the interface, developed the iPhone app, configured the backend across multiple servers, prepared the App Store listing, and successfully passed the app through moderation. They worked proactively, made quick decisions, and maintained a high pace until the project was fully completed. Completely satisfied with the result.
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