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How to Make a Mobile App: Native, Cross-Platform or Web-Wrapped

Mobile app development explained: native, cross-platform and web-wrapped apps compared honestly, the steps to ship one, store costs, and where AI fits.

Mythex Team · 2026-11-01 · 6 min read

To make a mobile app, decide what it must do on a phone, choose how it will be built (native code per platform, a cross-platform framework, or a web app wrapped for the stores), build and test a first version on real devices, then publish it through Google Play and the App Store. The choice of approach is the big decision: it sets your cost, which phone features you can use, and how quickly you can ship changes. This guide compares the three approaches honestly, walks through the steps, and shows where AI builders such as Mythex fit.

The three ways mobile apps are built

Native apps

A native app is written for one platform in that platform's own language and tools: Swift and Xcode for iPhone, Kotlin and Android Studio for Android. You build two apps if you want both platforms.

• Strengths: full access to every device feature, the smoothest animations, and the newest platform features on day one.
• Weaknesses: two codebases, two sets of skills, and the highest cost. Xcode only runs on a Mac.
• Best for: games, camera- or sensor-heavy apps, apps where performance is the product.

Cross-platform apps

Frameworks such as React Native and Flutter let developers write most of the app once and run it on both platforms. The result is a real installed app that looks and feels close to native.

• Strengths: one main codebase, near-native feel, broad access to device features through plugins.
• Weaknesses: still a developer's job; platform-specific bugs and upgrades take real effort.
• Best for: consumer apps that need a polished feel on both platforms with one team.

Web-wrapped apps

A web-wrapped app is a web app inside a native shell. Tools such as Capacitor package the web app so it installs from the stores, has its own icon, and can call some device features through plugins.

• Strengths: one codebase for website, Android and iPhone; updates to the web app reach the phone app without a new store build for most changes; much cheaper to make.
• Weaknesses: screens are web pages, so very heavy animation or graphics won't feel fully native; Apple expects the app to offer more than a repackaged website.
• Best for: booking apps, portals, trackers, ordering, community and business tools, which is to say most first apps.

Side by side

A fourth option skips the stores altogether: a mobile-friendly web app or progressive web app that people open from a link or save to their home screen. Our native vs progressive web apps guide explains when that's enough.

Where Mythex fits

Mythex is an AI app builder. You describe the app in chat, it builds a full-stack web app with a live preview, a real database and file storage, and you publish it to a public URL. On the Pro plan it then turns that published app into phone apps: an Android app file you can upload to Google Play, and an iPhone app sent to TestFlight with your own App Store Connect key. No Mac, Xcode or Android Studio is needed, because the builds run on Mythex's build machines.

That makes Mythex a web-wrapped approach, built with Capacitor. It does not write Swift or Kotlin. The phone app opens your published app, so each time you publish, the phone app shows the new version. If your idea is a high-end game or depends on deep hardware access, a native or cross-platform developer is the better route. If it's the kind of app most businesses and founders need, the Mythex mobile app builder gets you to both stores from one project.

Mobile app development, step by step

Step 1: Decide why it needs to be on a phone

Write down what the phone gives you that a laptop doesn't: the camera, being in someone's pocket at the right moment, location, scanning a code, quick one-handed use. If the honest answer is "nothing", start with a web app. Our list of mobile app ideas is grouped by the phone feature each one relies on.

Step 2: Pick platforms and approach

Check which phones your audience uses. Then choose the approach from the table above based on budget, features and who's building. If you're not a developer and the app is mostly screens, lists and forms, web-wrapped is usually the practical answer.

Step 3: Design for thumbs

Phone screens reward a few simple rules: one main action per screen, buttons large enough to tap, navigation at the bottom, and text that's readable without zooming. Ask for this explicitly if you use an AI builder: "phone-first layout, bottom tab bar, large tap targets".

Step 4: Build the first version

Build only the core flow. For example, a café loyalty app might do just this: customers sign up, show a QR code at the till, staff scan it to add a stamp, and the tenth stamp gives a free drink. A prompt for that:

Build a loyalty app for a café. Customers sign up with email and see a card with 10 stamp slots and their own QR code. Staff log in on a tablet, scan a customer's code, and add one stamp. At 10 stamps the card shows "Free drink" and staff can redeem it, which resets the card. Phone-first design with a bottom tab bar: Card, History, Account.

Step 5: Test on real phones

Test on at least one iPhone and one Android phone, on a slow connection, with large text turned on in the phone's settings. Both stores provide test channels: TestFlight for iPhone and testing tracks in Google Play Console. Our beta test guide helps you recruit and manage testers.

Step 6: Prepare the store listings

Each store needs a name, a description, screenshots, an icon, a privacy policy URL, and answers about what data you collect. Google Play asks for a Data safety form and a content rating; Apple asks for App Privacy details and an age rating.

Step 7: Submit and publish

• Google Play: as of November 2026, a one-time 25 USD registration fee. New personal accounts must run a closed test with at least 12 testers for 14 days before applying for production access. See how to publish an app on Google Play.
• App Store: the Apple Developer Program costs 99 USD a year. Every app is reviewed; Apple says most submissions are reviewed in under 24 hours. See how to publish an app on the App Store.

Step 8: Keep it updated

Stores raise their requirements over time. For example, from 31 August 2026 Google Play requires new apps and updates to target Android 16 (API level 36). Native and cross-platform apps need new builds for those changes; a web-wrapped app also needs an occasional new build, but its everyday content and features update when you publish the web app.

Costs to plan for

• Building: developer time, an agency quote, or a builder subscription. Mythex Pro, which includes phone app builds, is 25 USD a month.
• Store accounts: 99 USD a year for Apple, 25 USD once for Google, as of November 2026.
• Store commissions: if you sell digital goods inside the app, both stores take a percentage. Check their current terms.
• Running costs: hosting, database, email and any paid APIs.

The app cost guide compares the options in more depth.

Choosing, in one paragraph

If performance or deep hardware access is the whole point of the app, go native or cross-platform with a developer. If you need a useful app on both stores quickly and cheaply, and its screens work well as web pages, build it as a web app and wrap it. For platform-specific walkthroughs, read how to make an Android app and how to make an iPhone app.