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WhatsApp System Design

It is a simple messaging app.

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You can read these articles “WhatsApp System Architecture” & “FB messenger/Whatsapp Video Call System Architecture” to get the overview first.

As of 2022, WhatsApp is the most popular global mobile messenger app worldwide with approximately 2 billion monthly active users. With a daily 100 billion WhatsApp messaging volume, do you wonder how the WhatsApp system is designed? What frameworks and programming languages can achieve its goals?

Basic Information

Co-Founders: Brian Acton and Jan Koum

Head of WhatsApp: Will Cathcart (Up to now)

Owners: Facebook Inc (February 19, 2014, at $19 billion)

First Version Released: January 2009

Current Version:

• Android version: 2.22.19.76 (Sept 12, 2022) — 52.1MB
• iOS version: 22.19.75 (Sept 13, 2022) — 142.6MB
• Windows version: 2.2230.4 (Aug 3) — 143.22MB