Hire mobile app developers for iOS, Android and cross-platform
Hire mobile app developers from our in-house team in India who write Swift, Kotlin, Flutter and React Native. They build the app, the API behind it and the store release, and you own every line of source code.
Clutch 4.8/5 from 33 verified reviews
500+ projects since 2012 · profiles within 48 hours
Apps and platforms built for
Which mobile app developer you need, native or cross-platform
Decide the platform first, and the right hire follows from that choice.
- What does a dedicated mobile app developer do?
- A mobile app developer designs, builds and releases apps for iOS and Android, either natively in Swift for iOS and Kotlin for Android, or cross-platform with Flutter or React Native from one shared codebase. Most also connect the app to APIs, handle push notifications and manage App Store and Google Play releases.
Flutter, React Native, iOS and Android developers
One specialist for a single platform, or a mixed team for both stores.
iOS developers
Swift and Objective-C engineers who know Xcode and Apple's design guidelines build apps that feel at home on iPhone and iPad.
See iOS app developmentAndroid developers
Kotlin engineers using Android Studio and Jetpack, who test across the spread of Android devices your users carry.
See Android app developmentFlutter developers
One Dart codebase for iOS and Android, for teams that want to reach both stores from a single build.
See cross-platform developmentReact Native developers
Engineers who also know the web stack behind the app build React Native products with a native feel and shared TypeScript logic.
Estimate a React Native appXamarin and .NET MAUI developers
C# engineers build cross-platform apps in Xamarin and .NET MAUI. It fits best when your backend already runs on .NET, and our .NET developers can cover that side too.
Ionic developers
Ionic developers build hybrid apps from Ionic's UI components. It suits products that start on the web with React developers and later move to the app stores.
Native vs Flutter vs React Native
Go native when the app lives on device hardware. Go cross-platform when speed to both stores matters more than the last bit of polish.
| Native (Swift, Kotlin) | Flutter | React Native | |
|---|---|---|---|
| Codebases | Two, one per platform | One for iOS and Android | One for iOS and Android |
| Best for | Heavy use of camera, sensors, Bluetooth or background work | Custom UI and fast delivery to both stores | Teams that already write React and TypeScript |
| Who to hire | An iOS and an Android developer | One or more Flutter developers | One or more React Native developers |
| Where it falls short | Two builds to maintain and keep in step | Some platform features need native code | Native modules for complex device features |
How we vet mobile developers
Every CV you see belongs to a full-time, in-house developer with apps already shipped through App Store and Google Play review.
Shipped apps checked
Store listings and earlier releases are reviewed before we put a developer forward.
Technical interview
We test platform depth in Swift, Kotlin, Flutter or React Native, plus the API and release work around the app.
Coding exercise
Each candidate builds a working screen or feature, which we review for structure, state handling and tests.
Your interview
You run your own technical interview, project discussion and culture check before anyone joins.
4RSale: a local marketplace app for buying, selling and renting
ScalaCode built 4RSale, a marketplace app for buying, selling and renting locally. Sellers list and manage products, buyers search, pay and track orders, and both sides contact each other inside the app on iOS and Android.
from one Flutter codebase
Hear it from the founders
Video reviews from clients whose apps our mobile developers built.
How hiring a mobile developer works
You speak with each developer directly before you commit, and keep that direct line after they join. If a developer is not working out, we share new profiles within 48 hours at no cost.
Cost to hire mobile app developers
Dedicated mobile app developers start from $1,799 a month, full-time. For a fixed scope, a mobile app build starts at $9,999.
| Dedicated team | Fixed-scope project | Team extension | |
|---|---|---|---|
| How it is priced | From $1,799 a month per engineer, full-time | Fixed quote after a free discovery sprint | Billed monthly per engineer |
| Best for | Ongoing roadmap work on a mobile app | A defined build with agreed milestones | A specific skill gap in a team you already run |
| Who manages day to day | You, inside your process | ScalaCode, against agreed milestones | Your leads, with our engineers reporting in |
Monthly means full-time and dedicated, 160 hours. Compare every option on the Engagement models page.
Get your designs into the App Store and Google Play
Send the platforms and the deadline. You get mobile developer profiles within 48 hours.
What our mobile developers build with
What you own, and who you talk to
The questions founders ask before they sign, answered up front.
Source code and IP
Full ownership of the source code transfers to you once the app is live in the stores.
NDA before day one
Design, code and inventions are protected in the contract.
Direct line to developers
You talk face to face with the engineers building your app, on calls you schedule.
Your tools
Work runs in Jira or Trello, and calls happen on Slack, Microsoft Teams or Zoom, whichever your team already uses.
Rated 4.8/5 by the clients we build apps for
Verified reviews from Clutch and GoodFirms, and clients on camera.
33 verified reviews on Clutch
“I am the CEO of NAMEs, which is a healthcare application. And to be honest, I would have never achieved that without ScalaCode and their team of developers.”
Clutch review★★★★★“The team helped me developed an app for IOS and Android and were always on point to address my requests.”
GoodFirms review★★★★★“Their team displayed exceptional technical expertise and a deep understanding of AI technologies, which significantly enhanced the functionality of our app.”
Trustpilot review★★★★★“Literally, the end result for my Flutter-based app was phenomenal.”
Trustpilot review★★★★★“Easy interviewing and easy hiring of app developers from ScalaCode!”
GoodFirms review★★★★★“They built a high-performance, AI-powered platform that transformed video engagement for learning.”
Clutch review★★★★★“They gave us clear timelines and met them.”
Hire mobile app developers FAQs
If you are choosing between native and cross-platform, we will recommend one on the call.
How much does it cost to hire a mobile app developer?
Dedicated mobile app developers start from $1,799 a month, full-time and billed monthly. For a fixed scope, a mobile app build starts at $9,999 after a free discovery sprint.
Should we hire a Flutter, React Native or native developer?
Hire a native developer if the app depends on camera, sensors, Bluetooth or heavy background work. Hire for Flutter if you need both stores quickly with a custom UI, and for React Native if your team already writes React and TypeScript.
How do you vet mobile developers?
Every developer is a salaried member of our in-house team with apps already shipped through App Store and Google Play review. We check earlier releases, run a technical interview and a coding exercise, and then you interview the shortlist yourself.
How fast can a developer start?
Matched profiles reach you within 48 hours. After you interview and choose, onboarding takes about a week, and the developer contributes from the first week.
Can the developer take over our existing app?
Yes. The developer starts by reviewing the code, the build setup and the open issues, then takes over releases from your existing App Store and Google Play accounts. If the backend needs work too, Node.js developers can join the same team.
Who owns the app code and store accounts?
You do. Full ownership of the source code transfers to you once the app is live in the stores, and IP protection is written into the contract. We recommend publishing under your own App Store and Google Play accounts so the listings stay yours.
Can I talk to the developers directly?
Yes. You interview them before hiring and work with them directly afterwards.
Do the developers work in my time zone?
Our team works flexible hours, so your developer is online during part of your working day, wherever you are.
What happens if a developer is not working out?
We replace them. Tell us the issue and we share new profiles within 48 hours at no cost, and you choose again.
Your engineers work in your hours
Timezone overlap is built in. Your matched engineers keep 4 to 6 hours of daily overlap with US hours and a full working day with the UK, Europe and the Middle East, so standups, reviews and fixes land during your working day.
Their approach, dedication and project execution played a critical role in TipStars' success.
James EllisFounder, TipStarsTell us the platforms and we will send developers who have shipped to them
- Profiles matched on platform, stack and domain
- Interview developers directly before you commit
- You own the source code and IP
“They delivered on time and even offered ideas I hadn't considered.”
John-Paul Hatala, CEO, SnagPad