How are WhatsApp, Viber, Telegram written - briefly?
WhatsApp is primarily written in Java for its Android client and Objective-C for its iOS client, while the core backend infrastructure is built using Erlang. Viber's codebase predominantly consists of C++ with some components written in Java and Swift for Android and iOS respectively. Telegram, on the other hand, is primarily developed using a combination of C++ for its core components and Objective-C/Swift for iOS, while its Android client is written in Java.
How are WhatsApp, Viber, Telegram written - in detail?
The development and maintenance of messaging applications like WhatsApp, Viber, and Telegram involve a combination of front-end and back-end technologies. These platforms are designed to ensure seamless communication, high security, and user-friendly interfaces.
WhatsApp is primarily developed using Java for the Android platform and Swift for iOS. The backend is built on Erlang, a programming language known for its fault tolerance and distributed computing capabilities. WhatsApp uses the XMPP protocol for message delivery, ensuring real-time communication. Additionally, it employs end-to-end encryption to secure user messages using the Signal Protocol, developed by Open Whisper Systems.
Viber, on the other hand, is developed using a combination of C++ and Java for Android, while the iOS version is written in Objective-C. The backend infrastructure leverages Node.js, a JavaScript runtime environment that enables asynchronous and event-driven programming. Viber also uses end-to-end encryption to protect user messages, implementing its proprietary encryption protocol.
Telegram differs from WhatsApp and Viber in terms of development approach. It is developed using a combination of C++ for the core service and various libraries for different platforms. The backend is designed using custom binary protocols tailored for high speed and efficiency. Telegram offers multiple layers of security, including end-to-end encryption for secret chats, server-client encryption for cloud chats, and two-step verification for added protection.
All three applications prioritize user experience and security, employing modern technologies to deliver reliable and secure communication services.