Home/Services/Mobile App Development

Mobile apps for iOS and Android

We build cross-platform mobile apps with React Native and Flutter, so one codebase runs on both iPhone and Android. You get faster delivery and lower cost without giving up a native look and feel. We also build the backend, admin panel and APIs the app needs.

Typical timelines

MVP app8–12 weeks
Full-featured app3–5 months
Mobile app for an existing web app6–10 weeks

Exact timeline and a fixed quote after a free 30-minute call.

What we offer

Our Mobile App Development services

Cross-platform apps

One React Native or Flutter codebase for iOS and Android, with native performance.

Native iOS & Android

Swift and Kotlin modules when an app needs device features cross-platform tools can't reach.

App UI/UX design

Screens designed for thumbs and small displays, following iOS and Android conventions.

Backend & admin panel

APIs, databases, push notifications and a web admin panel to manage users and content.

App Store & Play Store launch

Store listings, screenshots, review guidelines and release management.

Updates & maintenance

Keep your app working with new iOS and Android versions, and keep adding features.

Why DeviStack

Why choose us for Mobile App Development

100+ projects delivered over 10+ years, for startups and established companies in India and abroad.

Discuss your project

One codebase, two platforms

Launch on iOS and Android together and maintain a single codebase.

Web and mobile, one team

The same team builds your app, website and backend, so they work together.

Offline & push ready

Offline data, push notifications, maps and in-app payments are familiar territory.

Store launch support

We handle store submissions and respond to reviewer feedback for you.

Our process

How we deliver Mobile App Development projects

Discovery & features

User journeys and a prioritised feature list for the first release.

UI/UX design

A clickable app prototype you can try on your phone before development.

Sprint development

Test builds on TestFlight and Play internal testing after every sprint.

Device testing

QA on real iPhones and Android phones, across screen sizes and OS versions.

Store launch & support

Submission to both stores, then bug fixes and updates after launch.

Technologies

Tools and technologies we use

Cross-platform

React NativeFlutterExpoTypeScript

Native

SwiftKotlinSwiftUIJetpack Compose

Backend

.NET 8Node.jsFirebaseSupabase

Services

Push notificationsGoogle MapsIn-app purchasesRazorpay / Stripe
FAQ

Mobile App Development: common questions

React Native or Flutter?

Both are good choices. We usually recommend React Native when you already have a React web app, and Flutter for highly custom, animation-heavy interfaces.

Will you publish the app to the stores?

Yes. We publish under your own Apple and Google developer accounts, so the app always belongs to you.

Can you add a mobile app to my existing web app?

Yes. We reuse your existing API where possible and add only what the app needs, such as push notifications.

What about updates after launch?

Apple and Google release new OS versions every year. Our maintenance plans keep your app compatible and up to date.

Start your Mobile App Development project

Tell us what you want to build. You'll get a written plan and a fixed quote within 48 hours, free of charge.