Quick answer
How do you hire a mobile app developer for your business app?
To hire a mobile app developer, first define your app's main features and users, then choose native (Kotlin, Swift) or cross-platform (Flutter, React Native) development and a hiring model. SI Experts gives you dedicated Android, iOS and Flutter developers on hourly, monthly or project terms, with a clear quote after a free call.
Key takeaways
- Decide the app's core features and users before you hire.
- Flutter and React Native build Android and iOS apps from one codebase.
- Native apps in Kotlin or Swift suit heavy, device-specific features.
- Most apps also need a back end, admin panel and API.
- Cost depends on screens, features, platforms, back end and upkeep.
- Keep code, store accounts and keys in your own name.
What does a mobile app developer do?
A mobile app developer designs the app's structure, writes the code for Android and iOS, connects it to a server, tests it on phones and publishes it to the Google Play Store and Apple App Store.
When you hire a mobile app developer, you are hiring for more than coding. A good developer helps you cut the first version down to the features that matter, warns you about store rules and plans for updates after launch.
Apps we commonly build
- Customer apps for ordering, booking or loyalty
- Field staff apps for attendance, visits and reports
- Ecommerce apps connected to Shopify, WooCommerce or a custom store
- Service marketplace apps with customer and provider sides
- Education and course apps with video and quizzes
- Delivery and tracking apps with maps and live location
- Companion apps for an existing web app or CRM
Our parent team, Shivah Web Tech, offers mobile app development alongside web development, so the same team can build your app, website and admin panel together.
Native vs cross-platform: which is better for your app?
Cross-platform (Flutter or React Native) is better for most business apps because one codebase serves Android and iOS. Native (Kotlin for Android, Swift for iOS) is better for apps that rely heavily on device features or top performance.
| Point | Flutter | React Native | Native (Kotlin / Swift) |
|---|---|---|---|
| Code sharing | One codebase for both | One codebase for both | Separate code per platform |
| Language | Dart | JavaScript or TypeScript | Kotlin and Swift |
| Good for | Most business and consumer apps | Teams already using React | Heavy graphics, deep device features |
| Time to launch | Faster | Faster | Slower for two platforms |
| Look and feel | Custom, consistent UI | Close to native components | Fully native |
If your team already uses React on the web, React Native lets you share skills with your React developer. If you are starting fresh, Flutter is a strong, simple choice for many apps.
What else does a mobile app need besides the app?
Most apps need a back end, a database, an admin panel and an API. The app on the phone is only the front part of the system.
Back end and API
Stores users, orders and data, and sends it to the app. Often built in Laravel or Node.js, or with Firebase.
Admin panel
A web dashboard where your team manages users, content, orders and reports.
Push notifications
Alerts sent through Firebase Cloud Messaging and Apple's push service.
Payments and messages
Payment gateways like Razorpay or Stripe, plus SMS, email or WhatsApp alerts.
For the back end and admin panel, our app developers often work with a Laravel developer. Planning both together avoids delays later.
How to hire a mobile app developer with SI Experts
We start with a free call, define the first version, design key screens, then build, test and launch in stages.
- 1
Free call
You share your app idea, users, must-have features and deadline.
- 2
Feature list and MVP scope
We separate must-have features from later ones, so the first version launches sooner.
- 3
Screen design
Key screens are designed in Figma and approved before coding.
- 4
Development sprints
The app is built in short cycles, with test builds shared on your phone.
- 5
Testing
We test on different Android phones and iPhones, slow networks and edge cases.
- 6
Store launch
We prepare listings and submit the app to Google Play and the App Store under your developer accounts.
- 7
Updates and support
After launch, we fix bugs, update for new OS versions and add features.
Work hours are Monday to Friday, 9:30 am to 6:30 pm IST. If your live app or its server has an urgent problem, 24x7 emergency support is available.
Need help with Mobile App Developers?
Talk to the SI Experts team. Free first call, simple advice, clear quote.
How much does it cost to hire a mobile app developer?
App cost depends on the number of screens and features, one or two platforms, the back end, design work and support after launch. You get a clear quote after a free call.
- Number of screens and user types (for example customer, staff and admin)
- Features like payments, maps, chat, video or offline mode
- Android only, iOS only, or both
- Back end and admin panel: new build or existing API
- Design: ready designs or new UI/UX work
- Testing depth and number of devices
- Support and updates after launch
The best way to control cost is to launch a focused first version, learn from real users and then add features.
How long does it take to build a mobile app?
A simple app takes less time than a marketplace or app with live tracking. The timeline depends mainly on features, design approval speed and back-end readiness.
| App type | Example | Relative timeline |
|---|---|---|
| Simple | Info app, catalogue, basic forms | Shortest |
| Medium | Login, payments, orders, notifications | Medium |
| Complex | Marketplace, live tracking, chat, video | Longest |
Apple and Google also review apps before they go live. Reviews are usually quick but can take longer if the store asks for changes, so we plan time for this in the schedule.
Skills to look for in a mobile app developer
Look for real published apps, clear knowledge of store rules, API skills and a habit of testing on real devices.
- Apps live on Google Play or the App Store that you can download
- Flutter, React Native, Kotlin or Swift, matching your chosen approach
- REST API and Firebase experience
- Push notifications, deep links and in-app updates
- Play Store and App Store submission and policy knowledge
- Handling app permissions and user data safely
- Crash reporting tools like Firebase Crashlytics
- Testing on low-end Android phones common in India
Good app design matters as much as code. Pair your developer with a UI/UX designer so the app is simple to use from the first screen.
Hourly, dedicated or fixed project: which hiring model fits?
Choose a fixed project for a clear first version, a dedicated developer for an app that grows every month, and hourly blocks for fixes and small updates.
| Model | Best for | Keep in mind |
|---|---|---|
| Fixed project | A first version with a clear, written feature list | New ideas during the build need a change estimate |
| Dedicated monthly | Startups and businesses adding features every month | You set priorities each week |
| Hourly block | Bug fixes, OS updates, small changes | Best when tasks are small and clear |
Many clients build the first version as a fixed project, then move to a dedicated or hourly plan after launch. This keeps early costs clear and gives a steady team for updates later.
Agencies can also hire our app developers on a white-label basis to deliver client apps under their own brand.
Mistakes to avoid when building a mobile app
The biggest mistakes are building too many features first, skipping design, and publishing the app under the developer's account.
- Trying to launch with every feature instead of a focused first version
- Starting code before screens and user flows are agreed
- Publishing the app under the developer's store account instead of yours
- Ignoring low-end Android phones and slow internet
- No plan for updates when Android and iOS release new versions
- Forgetting the admin panel your team needs to run the app
- No marketing plan to get downloads after launch
Once the app is live, our digital marketing experts can plan app install campaigns, and our Google Ads experts can run app campaigns to bring in users.
Frequently Asked Questions
How much does it cost to build a mobile app in India?
It depends on features, number of screens, Android or iOS or both, back end and design needs. A simple app costs much less than a marketplace with live tracking and chat. SI Experts shares a clear written quote after a free call, with a GST invoice for Indian clients.
Should I build my app in Flutter or native?
For most business apps, Flutter is a good choice because one codebase runs on Android and iOS, which saves time and cost. Native development in Kotlin or Swift is better for apps with heavy graphics, complex device features or very high performance needs. We suggest the right option after hearing your needs.
Can you build only an Android app first?
Yes. Many Indian businesses start with Android because most of their users have Android phones. If you build with Flutter or React Native, adding iOS later is much easier because most of the code is shared.
Who owns the app and the code?
You do. The app is published under your own Google Play and Apple developer accounts, the code is stored in your Git repository, and server and API keys are in your name. This lets you change developers or scale the team at any time.
Do you also build the admin panel and back end?
Yes. Most apps need a back end, database and admin panel. Our developers build these with Laravel, Node.js or Firebase, depending on your needs. Planning the app and back end together avoids delays and rework later.
Can you take over an app built by another developer?
Yes. We first review the code, build setup, store accounts and server. Then we list risks and quick fixes, and continue with updates and new features. Having the full source code and account access is important, so check these before your old developer leaves.
Do apps need updates after launch?
Yes. Android and iOS release new versions every year, and store rules change. Apps also need bug fixes, security updates and new features based on user feedback. A monthly support plan keeps your app working and accepted by the stores.
Can you add WhatsApp or SMS alerts to my app?
Yes. Apps can send order updates, OTPs and reminders through SMS services or approved WhatsApp Business API providers. These alerts are usually sent from the back end, so they work even when the user has not opened the app recently.