Should You Build Your Mobile App for iOS or Android?

Originally published 2015, updated 2026.

If you’re building a mobile app, one of the first real decisions is which platform to launch on. iOS and Android remain the two platforms that matter, and while a simultaneous launch on both is the ideal, budget and timeline usually mean picking one first.

Identify Your Audience, and Their Platform

Android has the larger global install base; iOS users, on average, spend more per app and are more engaged with in-app purchases. Which matters more to you depends on your business model: an ad-supported app cares about reach, a paid or subscription app cares about willingness to spend.

If you already have a website, check your analytics. If more of your mobile traffic comes from iOS, that’s a real signal to start there, and vice versa for Android.

Where Is Your Audience Located?

Platform popularity varies significantly by region. iOS tends to be stronger in the US; Android leads in large parts of Asia and other markets. Know which countries you’re targeting before you commit.

Are You Charging for the App?

iOS users have historically been more willing to pay for apps and in-app purchases than Android users, which matters if your monetization model depends on direct payment. This shouldn’t rule out Android, but it’s a real factor to weigh if you plan to charge for the app itself.

Android: Pros and Cons

Android is open-source, which makes it more approachable for first-time founders and bootstrapped teams: there’s a large ecosystem of existing frameworks and libraries to build on instead of starting from scratch. Google Play’s review process is also generally more lenient than Apple’s, which gives you more flexibility with newer or less conventional app types.

The tradeoff is device fragmentation: Android runs on a much wider range of hardware and OS versions, so testing across devices takes more effort, and you’re more likely to run into device-specific issues.

iOS: Pros and Cons

iOS remains the stronger platform in the US specifically, and if you’re monetizing through purchases or subscriptions, iOS users are historically more willing to spend. The tradeoff is that iOS users expect a polished, high-quality experience: design and finish need to be genuinely strong, or the app won’t get traction. That level of design can cost more upfront, though it tends to pay off.

Conclusion

There’s no universally correct platform to start with. The right choice depends on your audience, where they’re located, your business model, and your current goals. If you have the budget and timeline, building both at once is ideal. If not, the more common path is to launch on one platform, get real feedback, iterate, and then build the second.

Need help choosing the right platform for your next app? We build for both iOS and Android. Get in touch to discuss your project.