Capacitor vs. Expo: Which is Best for Converting Your Web App?

While Expo is a powerful framework for building mobile-first applications from scratch, Capacitor acts as a native bridge that wraps your responsive website · whether built on Lovable, Bolt, Bubble, or WordPress·into a real native binary for the Apple App Store and Google Play Store.

The Fundamental Difference: Bridge vs. Framework

The choice between Capacitor and Expo is a choice between two different architectural philosophies.

Capacitor, created by Ionic, is an open-source native runtime that allows you to build "web native" apps. It uses a WebView to render your existing HTML, CSS, and JavaScript, providing a bridge to native APIs like the camera, geolocation, and push notifications. This means if your site looks great in a mobile browser, it will look exactly the same as a native app.

Expo is a platform built on top of React Native, a framework by Meta. Instead of using a WebView to show your website, Expo uses React components that render to native platform views. While this provides high performance, it means you cannot simply "point" Expo at your existing URL. You must rebuild your entire user interface using React Native primitives like <View> and <Text> instead of standard web tags like <div> and <span>.

When to Choose Capacitor

Capacitor is the superior choice for founders and "vibe-coders" who have already invested in a web-based product.

1.

If you have built a sophisticated web app using tools like Vercel, Replit, or Cursor, Capacitor allows you to ship that exact experience to mobile. You do not need to maintain two separate codebases. When you update your web app, those changes can be synced to your mobile app instantly.

2. Speed to Market

Because there is no UI rewrite required, the turnaround time is significantly faster. KW Native provides a Standard build (iOS + Android) in just 12 business days, or a Pro build in 7 business days.

3. Easier Testing and Debugging

Testing is generally easier with Capacitor because it permits running and debugging apps directly in a standard web browser. React Native and Expo require more complex compilation and testing steps on physical devices or simulators from the start.

4. Native Feature Support

Despite being web-based, Capacitor apps are "real" native binaries (.ipa and .aab). Every KW Native build includes:

• Push Notifications: Integrated via Firebase Cloud Messaging (FCM).
• Biometrics: Face ID and Touch ID support for secure logins.
• Authentication: Apple Sign In and Google OAuth.
• Deep Linking: Universal Links (iOS) and App Links (Android).
• Hardware Access: Full access to the camera and microphone.

When to Choose Expo

Expo is an excellent tool, but it is typically the wrong choice for "converting" an existing site. It is designed for native-first development.

1. Greenfield Projects

If you do not have a website yet and want to build a mobile-only experience, Expo provides a managed workflow that handles much of the native complexity. It is used by major companies like Instagram and Shopify for their mobile-first needs.

2. High-Intensity Performance

Because Expo renders to native views rather than a WebView, it can offer smoother performance for apps with high-frequency UI updates, such as mobile games or complex data-heavy dashboards with intense scrolling requirements.

3. React Native Ecosystem

If you are a dedicated React developer and want to leverage the vast ecosystem of React Native libraries, Expo is the industry standard. However, be prepared for the "ejecting" process · or managing Continuous Native Generation (CNG) · if you need to add custom native code that isn't supported by the standard Expo modules.

The Cost of Conversion: One-Time vs. Subscription

The financial model of your app development is as important as the technology. Many "app builders" operate on a rent-to-own or subscription model.

• KW Native: We charge a one-time fee. Starter (iOS only) is £399, Standard (iOS + Android) is £599, and Pro is £899. You own the source code, the GitHub repo, and the app is published under your own Apple ($99/year) and Google ($25 one-time) accounts.
• BuildNatively: Costs from $19/month, which totals $228/year. You do not receive the source code, and the app is not in your own account.
• Median.co: Their Starter package is $229 one-time, but they charge $179/year for maintenance starting in the second year.
• Convertify: Offers a $99-$149 one-time fee, but you do not get access to the source code.

With KW Native, you receive a RUNBOOK.md and the full Capacitor source code. This means you are never locked into our service. If you want to hire a developer later to add custom features, they have everything they need.

Overcoming Apple Guideline 4.2

A common fear when using Capacitor is Apple's Guideline 4.2, which states that apps should provide more than just a "repackaged website."

We have a proven track record of bypassing Guideline 4.2 by integrating native-only features. For example, Ginza, a social network built on Lovable and Supabase, shipped to the iOS App Store in just 3 weeks and passed the Apple review on the first attempt. By adding native push notifications, biometrics, and Apple Sign In, the app provides a "real" native experience that satisfies Apple's requirements.

Comparison Summary

Which Should You Choose?

Choose Capacitor if:

• You have a responsive web app built on Lovable, Bolt, v0, Webflow, or Shopify.
• You want to launch on both stores in less than two weeks.
• You want to maintain a single codebase for web and mobile.
• You want to avoid monthly subscriptions and own your code.

Choose Expo if:

• You are starting a brand-new project with no existing web presence.
• You have a team of React Native developers ready to build a custom UI.
• Your app requires extreme performance for 3D rendering or complex animations.

For the majority of modern founders using AI tools and no-code platforms, Capacitor is the most efficient bridge to a professional App Store presence. It allows you to focus on your product logic while we handle the native "plumbing."

Ready to see your web app on the home screen? Get started with KW Native today.

Frequently Asked Questions

Can I convert a SharePoint or Salesforce site? Yes. As long as the site is responsive and accessible via a URL, Capacitor can wrap it into a native app. This is a common path for creating "private apps" for internal corporate distribution.

What is a private app? A private app is distributed outside the public App Store, often via Apple Business Manager or as an enterprise build. This is ideal for internal tools built on platforms like Salesforce Experience Cloud.

Do I need a Mac to build the iOS app? If you use KW Native, no. We handle the entire build process and delivery of the .ipa and .aab files. If you choose to build it yourself using the source code we provide, you will eventually need a Mac (or a cloud-based Mac service) to compile the final iOS binary.

How do I test Universal Links? Every KW Native build includes support for Universal Links (iOS) and App Links (Android). We provide a publishing checklist to help you configure your apple-app-site-association and assetlinks.json files on your web server to ensure seamless transitions from web to app.