Fast, secure web apps, portals and dashboards built with React, Next.js and Node.js.
Mobile App Development
Mobile App Development Services
Mobile app development is designing and building apps for iPhone and Android phones. Nexdevix builds cross-platform apps with React Native, so one codebase runs on both platforms at close to native speed, and we handle App Store and Google Play submission for you.
What we build
Our Mobile App Development Services
iOS and Android apps
One React Native codebase for both stores, with native modules where needed.
App UX and UI design
Platform-aware design that follows Apple and Google guidelines.
App backends and APIs
Secure APIs, authentication, push notifications and admin panels.
Offline and sync
Apps that keep working without signal and sync when back online.
In-app payments
Subscriptions and purchases through Apple, Google and Stripe.
App store launch
Store listings, screenshots, review guidelines and release management.
Cross-platform apps without the compromises
Most businesses need an app on both iPhone and Android. Building two separate native apps doubles the cost and the bugs. With React Native, we write one codebase that compiles to both platforms and still feels native to users.
When we recommend fully native development
If your app relies heavily on augmented reality, complex background processing or brand-new platform features, fully native Swift and Kotlin apps can be the better choice. We will say so during discovery, even if it means recommending another team.
After launch
An app is never finished on launch day. Operating system updates, new devices and user feedback all need attention. Our monthly support plans cover updates, monitoring and new features. If you need developers on your own team, you can also hire React Native developers.
Why Nexdevix
Why Choose Nexdevix for Mobile App Development
One codebase, two stores
Cross-platform development cuts build and maintenance cost by roughly a third.
Real-device testing
Every release is tested on a range of real iPhones and Android devices.
Store approval handled
We prepare builds to pass Apple and Google review the first time.
Crash monitoring
Crash and performance reporting set up before launch day.
Process
How We Deliver Your Project
Step 1 · 1–2 weeks
Discovery
Workshops to agree goals, users, scope and a fixed estimate.
Step 2 · 1–3 weeks
Design
Wireframes and a clickable prototype you approve before code.
Step 3 · 4–12 weeks
Development
Two-week sprints with a working demo at the end of each one.
Step 4 · 1–2 weeks
Testing and launch
Automated and manual QA, security checks, then a staged release.
Step 5 · Ongoing
Support and growth
Monitoring, fixes and new features on a monthly plan.
Technologies
Technologies We Use for Mobile App Development
Pricing
How Much Does Mobile App Development Cost?
- Typical cost
- $20,000 – $150,000+
- Typical timeline
- 10 – 24 weeks
The cost of mobile app development depends mainly on scope. These are the factors that move the price most:
- Number of screens and user flows
- Offline mode, maps, camera or Bluetooth features
- Backend, admin panel and integrations
- Number of devices and OS versions supported
Prices in USD. You get a written, fixed estimate after a free discovery call.
FAQ
Mobile App Development FAQs
Why do you build with React Native?
React Native produces fast, native-feeling apps for iOS and Android from one codebase, and shares code and skills with React web apps, which keeps build and maintenance costs down.
How much does it cost to build a mobile app?
Most apps we build cost between $20,000 and $150,000. A focused first version with a simple backend is often $25,000 to $50,000.
Do you publish the app to the App Store and Google Play?
Yes. We prepare store listings, handle review feedback and publish under your own developer accounts, so you keep ownership.
Can you take over an existing app?
Yes. We start with a code and architecture audit, fix urgent issues, then continue development or plan a rebuild if the code cannot be saved.
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