Native vs cross-platform apps: how to choose

Native apps

Native apps are written in the platform's own languages: Swift for iOS and Kotlin for Android. They have full access to device features, follow each platform's design conventions closely and usually perform best. The downside is that you build and maintain two separate apps, often with two developers or teams, which costs more and takes longer.

Native is a good choice for apps that rely heavily on device features, demanding graphics, advanced camera or audio work, or that must feel perfectly at home on one platform.

Cross-platform apps

Cross-platform frameworks let developers write most of the code once and run it on both iOS and Android. Flutter and React Native are the most common. For many business apps, such as booking, ordering, content, community or internal tools, they deliver a good experience at lower cost and with faster updates, because changes are made once.

Some features still need platform-specific code, and the app depends on the framework keeping up with new operating system versions.

Side-by-side comparison

The third option: a web app

Not every product needs to be in the app stores. A web app runs in the browser and works on any device. It is quicker to launch and update, and avoids store reviews. It is a good first step for testing an idea, for internal tools and for services people use only occasionally. You can move to a store app later if users need offline use, notifications or deeper device access.

How to choose

• Testing a new idea quickly: a web app or a simple cross-platform MVP.
• Business app on both platforms with standard features: cross-platform.
• Demanding performance or deep device features: native iOS and Android.
• Audience mostly on one platform: start native on that platform.

Whatever the approach, ask to see apps the developer has published in the stores and download them if you can. Using a real app for a few minutes tells you more about quality, speed and attention to detail than screenshots in a portfolio. Ask what the developer would do differently if they built it again; thoughtful answers are a good sign of experience.

Questions to ask developers

Ask which approach they recommend for your app and why. A good developer explains the trade-offs for your features, not just their favorite tool. Ask who will publish the app to the stores, under whose developer accounts, and who owns the code. Ask about maintenance: operating systems change every year, and apps need updates to keep working. Make sure the source code is stored in a repository you control.

Costs beyond the first version

The first release is only the beginning. Apps need updates for new operating system versions, security fixes, bug fixes and new features. Store accounts have yearly fees, and many apps rely on servers, databases or third-party services that have monthly costs. When you compare offers, ask developers to describe the ongoing work as well as the initial build. A cheaper first version can become expensive if it is hard to maintain or if only one developer understands the code.

Ask for clear documentation, automated tests where sensible and a simple process for releasing updates. These make it easier to change developers later and protect your investment in the app.

Design before you build

Whichever approach you choose, invest in screen designs and a clickable prototype first. Testing the flow with a few real users before development starts is far cheaper than changing a finished app. See our app design guide.