How to Hire a Mobile App Developer
By DevDey Editorial Team · June 20, 2026 · 7 min read
Mobile is unforgiving in a way the web is not. Users judge an app in the first ten seconds, the app stores can reject your release, and a clumsy update can break the app for everyone at once. Hiring the right mobile developer is mostly about getting a couple of early decisions right, and those decisions happen before you ever post a job.
Decision one: native or cross-platform?
This single choice shapes who you hire, how much you spend, and how fast you move.
| Approach | Best for | What you hire |
|---|---|---|
| React Native / Flutter (cross-platform) | Most startups and MVPs; one codebase for iOS and Android | One developer or a small team |
| Native iOS (Swift) + native Android (Kotlin) | Performance-critical apps, heavy device features, large budgets | Often two specialists |
For most founders shipping a first version, cross-platform is the pragmatic answer. One codebase, one hire, both platforms. You reach for native when you genuinely need it, think high-end games, heavy camera or sensor work, or an app where milliseconds matter.
Decision two: do you need design too?
Mobile lives and dies on feel. Some mobile developers have a strong eye and can take a rough idea to a polished screen; many cannot, and will faithfully build whatever you hand them, ugly or not. Be honest about which you need. If you do not have designs, either hire someone who can do both or budget for a designer separately. Do not assume.
What to look for
- Apps actually in the stores. The strongest possible portfolio is a link you can download right now. Install it. Use it. Does it feel good?
- Experience shipping updates, not just launching. Submitting to the App Store and Play Store, handling reviews and rejections, and pushing updates without breaking things is a real skill.
- Awareness of the boring essentials, push notifications, offline behaviour, different screen sizes, and the dreaded app-store review process.
Tip: Download two or three apps a candidate has shipped and just use them for five minutes. You will learn more about their craft than any interview question can tell you. Pay attention to the small stuff, loading states, empty screens, what happens when you lose signal.
A realistic evaluation
Ask for a short, paid build: one screen with real interactions, or a small feature added to a sample app. Then ask how they would handle an app-store rejection, or what they would do if the app worked perfectly on their phone but crashed on a cheaper Android device. Their answer reveals whether they have actually shipped or only built demos.
The best mobile portfolio is not a screenshot. It is an app you can download and feel for yourself.
Finding mobile talent
On DevDey you can browse developer profiles for mobile experience or post a job describing your app and let matching surface developers who have shipped something similar. The wider hiring playbook is in our guide to hiring a software developer, and if budget is your main worry, start with how much it costs to build an MVP in 2026.
Ready to build your app?
Post your job and get matched with mobile developers who have real apps in the stores, not just demos.
Frequently asked questions
Should I build a native or cross-platform app?
For most startups and MVPs, cross-platform with React Native or Flutter is the pragmatic choice: one codebase covers iOS and Android, and you can hire a single developer. Go native (Swift and Kotlin) when you need maximum performance or heavy device features, which usually means hiring two specialists.
How do I check a mobile developer's work?
Download apps they have shipped and use them for a few minutes. Pay attention to loading states, responsiveness across screen sizes, and what happens when the connection drops. A live, downloadable app is the strongest portfolio there is.
Do mobile developers also do the design?
Some do and some do not. Many will faithfully build whatever designs you provide but will not improve them. If you do not already have designs, either hire a developer with a strong design sense or budget for a separate designer.
How much does it cost to build a mobile app?
It varies widely with scope and where your developer is based. A simple cross-platform MVP costs far less than a polished native app with custom features. Our MVP cost guide breaks down the realistic ranges for 2026.