React Native Lab

We explore everything about React Native development — from JavaScript and TypeScript to app architecture, performance. Perfect for developers who want to build beautiful, modern, and efficient apps the React Native way.

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Writing code is not only important, but optimizing app size also matters.

How I Reduced My React Native App Size by 70%

Learn the things that can definitely help reduce the app size.

5 min readAug 1, 2025

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Usually, hybrid apps have larger sizes than natively built apps. So, optimizing app sizes is as crucial as building the apps.

Most of the developers just focus on building the apps rather than realizing they don’t know how to optimize or reduce the app sizes.

5 TypeScript Secrets No One Talks About (But You Should Know!)

Discover hidden gems in TypeScript that can make your code safer, smarter, and easier to maintain.

nameisjayant1.medium.com

No worries, in this article, we will see how I optimize and reduce my app sizes by up to 70% in a React Native app.

Why React Native Apps Become So Large

Before optimizing the size, let's see why React Native apps are bigger in size.

All the JavaScript code is bundled into a single large file.
A library that is in the project but not used in…

Written by Jayant Kumar

Jayant Kumar is a Lead Software Engineer, passionate about building modern applications. He shares his expertise in Javascript, Typescript, ReactNative and Expo

Published in React Native Lab

Last published 19 hours ago

We explore everything about React Native development — from JavaScript and TypeScript to app architecture, performance. Perfect for developers who want to build beautiful, modern, and efficient apps the React Native way.

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