Hybrid Application What Is It - Step By Step Quick Guide

You want to create an app, but the budget is tight and the deadline is yesterday. Someone told you: "Do a hybrid!". But what does this mean in practice?

This is the Quick Guide to understand, decide and get started in the world of hybrid applications. Without beating around the bush.

What is it?

A Hybrid App is an app that you program once and it works on iPhone (iOS) and Android. It's like speaking English: you learn a language and can communicate in the USA, England and Australia. In Native development, you would have to learn "iOnes" and "Androideiro" separately.

The 3 Main Technologies (The "Big Three")

If you're going to do a hybrid today, choose one of these. Ignore the rest.

React Native (Meta/Facebook):
- Language: JavaScript / TypeScript.
- As is: Uses native components. The button you see is the actual cell phone button.
- Who uses it: Instagram, Uber, Airbnb.
- Verdict: Best choice if you already know Web development.
Flutter (Google):
- Language: Dart.
- As it is: Draws the screen pixel by pixel (like a game).
- Who uses it: Google Pay, Nubank, BMW.
- Verdict: Better visual performance and consistency across platforms. Slightly higher learning curve (new language).
Ionic / Capacitor:
- Language: HTML, CSS, JS (Pure Web).
- How it is: Runs a website inside an app "shell".
- Verdict: The fastest to develop, but may have lower performance on older cell phones. Great for internal corporate apps.

Step by Step to Get Started (Hello World)

Let's assume you chose React Native (the most popular).

Step 1: Installation

You need Node.js installed on your computer. Open the terminal and type: npx create-expo-app MeuPrimeiroApp

(We use Expo, which is a tool that makes initial configuration much easier).

Step 2: Running the App

Enter the folder: cd MeuPrimeiroApp Turn: npx expo start

A QR Code will appear on the screen.

Step 3: Viewing on Cell Phone

Download the "Expo Go" app from the App Store or Play Store on your cell phone. Scan the QR Code. Ready! The app is running on your cell phone. 🪄

Step 4: Editing

Open file App.js in your code editor (VS Code). Change the text "Open up App.js..." to "Hello Hybrid World!". Save. Look at the cell phone. The text changed instantly (Fast Refresh).

Advantages of the Hybrid (The "Cat's Jump")

Cost: You pay 1 developer instead of 2.
Maintenance: Did you change the color of the brand? Change a line of code, reflected in both apps.
Over-the-Air Update (OTA): With tools like CodePush, you can update the hybrid app without the user having to go to the store to download the update (for small fixes).

Conclusion

Hybrid development has democratized app creation. Today, a two-person startup can compete with large companies by delivering high-quality apps to all users.

Download Expo or Flutter today and make your first "Hello World". The future is hybrid.