---
title: "Discussion on \"How Instagram, WhatsApp, Uber & Netflix Would Be Built Today Using Expo Router\" | Hashnode"
description: "Discussion on \"How Instagram, WhatsApp, Uber & Netflix Would Be Built Today Using Expo Router\". Building a todo app is easy. Building Instagram is hard.\nThe difference isn't the code. It's the architecture.\nLet's look at how massive mobile apps scale using React Native and Expo Router. No fluff."
url: "https://hashnode.com/posts/how-instagram-whatsapp-uber-netflix-would-be-built-today-using-expo-router/6a1c521a71856a58b0db0e45"
---

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# [How Instagram, WhatsApp, Uber & Netflix Would Be Built Today Using Expo Router](https://blog.rithbanerjee.site/how-instagram-whatsapp-uber-netflix-would-be-built-today-using-expo-router?utm_source=hashnode&utm_medium=feed)

Building a todo app is easy. Building Instagram is hard. The difference isn't the code. It's the architecture. Let's look at how massive mobile apps scale using React Native and Expo Router. No fluff.

May 31 · 4 min read · blog.rithbanerjee.site  
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## Written by

[Rith Banerjee](https://hashnode.com/@rithcoderr)

@rithcoderr

  
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