Ever wondered how Telegram delivers those buttery-smooth animations and rock-solid encryption on iOS? Wonder no more. This is the actual source code powering the official Telegram iOS app - not a clone, not a wrapper, but the real McCoy that millions use daily. With 8,142 stars and counting, it’s one of the most significant open-source iOS projects available.
What sets this apart is the complete transparency into a production messaging app handling billions of messages. You get to see how they implement MTProto encryption, handle real-time message delivery, manage media compression, and create those signature Telegram UI animations. The codebase includes their custom build system using Bazel, comprehensive documentation for compilation, and clear guidelines for creating your own Telegram-based apps. It’s Swift code at scale, battle-tested by a massive global userbase.
Whether you’re an iOS developer studying app architecture, a security researcher examining encryption implementations, or someone building the next great messaging app, this repository is pure gold. The compilation guide gets you from clone to running app in minutes, and the licensing encourages innovation while maintaining the open-source spirit.
⭐ Stars: 8142
💻 Language: Swift
🔗 Repository: TelegramMessenger/Telegram-iOS