Mobile App Development

Mobile app development for apps people keep on their home screen.

We design, build and launch native and cross-platform apps with React Native, Flutter, Swift and Kotlin, from the first sketch to the App Store and Google Play, and every release after.

How a project runs
  • iOS and Android
  • Design to store launch
  • Your code, your store accounts
Teams we’ve built for
RideMamaVilindha TechnologiesInnoconflux PublicationsSportyfiaLittle Sharks Dental Clinic
When it makes sense

When an app is the right next step.

Not every product needs an app. These are the situations where one earns its place on someone's phone.

  • 01

    Your users are always on the move

    Bookings, deliveries, field work and payments happen away from a desk, and the web isn't enough.

  • 02

    You need push, camera or location

    Reminders that arrive, scans, maps and tracking need the phone's own capabilities.

  • 03

    Repeat use is the business

    People come back daily or weekly, and an icon on the home screen keeps them coming back.

  • 04

    The current app gets bad reviews

    Crashes, slow screens and confusing flows are costing ratings and installs.

  • 05

    It has to work offline

    Patchy networks mean work has to save locally and sync when the signal returns.

  • 06

    Your web product needs a companion

    Customers want the few workflows that matter, in their pocket, with alerts.

Architecture

Cross-platform or native: decided with you, not by habit.

Architecture is the most expensive decision in a mobile project, and the hardest to reverse. We make it with you in discovery, against your features and your roadmap.

Cross-platform compared with native
Built withCross-platformReact Native, Expo or FlutterNativeSwift and SwiftUI, Kotlin and Compose
CodebasesCross-platformOne for iOS and AndroidNativeOne per platform
Best forCross-platformMost business and consumer appsNativeHeavy camera, AR, Bluetooth or background work
New OS featuresCross-platformUsually soon after releaseNativeAvailable on day one
MaintenanceCross-platformLess to keep up as the app growsNativeTwo teams' worth of upkeep
Shares with webCross-platformLogic and talent, with React NativeNativeVery little

Cross-platform is our default for most products because it's less to build and maintain. When the platform is the product, we go native and say why.

What we build

Apps for every stage, from first idea to a large user base.

We've shaped our process around the apps Indian and global businesses need most, and the details each one gets wrong when it's rushed.

  • 01

    Consumer apps

    Social, lifestyle and content apps where onboarding, speed and polish decide whether people come back on day two.

    • Onboarding
    • Feeds
    • Profiles
    • Push
  • 02

    E-commerce and D2C

    Catalogues, carts, UPI and card checkout, order tracking and loyalty, designed around the repeat purchase.

    • Catalogue
    • Cart
    • UPI checkout
    • Loyalty
  • 03

    Fintech and payments

    Wallets, lending and investing flows with KYC, biometric login and the security reviews regulated products need.

    • KYC
    • Biometric login
    • Wallets
  • 04

    Health and wellness

    Booking, consultations, tracking and HealthKit or Health Connect integrations, with privacy built in from the start.

    • Booking
    • Reminders
    • Health data
  • 05

    On-demand and marketplaces

    Two-sided apps for customers and partners, with live location, dispatch, chat and payouts.

    • Live tracking
    • Dispatch
    • Partner app
    • Payouts
  • 06

    Companion apps for SaaS

    Take your web product mobile: offline access, push alerts and the handful of workflows people actually need on the move.

    • Offline sync
    • Alerts
    • Approvals
How it runs

From kickoff to the stores, with a build on your phone every two weeks.

You hold the app in your hand from the first sprint, so feedback is about the real thing, not a screenshot.

  1. 01

    Discovery

    Workshops, user and competitor research, a feature list ordered by impact, and a technical plan you own.

    You get
    • Feature list
    • Technical plan
    • Fixed quote
  2. 02

    UX and UI design

    Flows, wireframes and a clickable prototype you can test with real users before any production code.

    You get
    • Clickable prototype
    • Design system
  3. 03

    Build in sprints

    Two-week sprints, each ending with a build on your phone through TestFlight and Play internal testing.

    You get
    • Test builds
    • Sprint notes
  4. 04

    QA and hardening

    Automated tests, runs on real handsets, performance profiling and a security pass before anything ships.

    You get
    • Device test report
    • Crash-free builds
  5. 05

    Store launch

    Listings, screenshots, privacy labels and review handling for both stores, under your own developer accounts.

    You get
    • Store listings
    • Live apps
  6. 06

    Grow and support

    Monitoring, readiness for each OS update, A/B tests and a roadmap driven by how people actually use the app.

    You get
    • Monitoring
    • Release plan
Ownership

What we build is yours. In writing.

Software you'll run for years shouldn't tie you to the people who wrote it. Once the work is paid for it's yours outright, handed over in accounts you control.

  • 01

    Code and IP

    Full ownership of the code and design files passes to you on payment. No licence fees, ever.

  • 02

    Your own accounts

    Repositories, hosting, stores and domains are handed over in your name, not kept in ours.

  • 03

    Documentation

    Setup guides, architecture notes and a record of key decisions, so any capable team can pick it up.

  • 04

    Confidentiality

    We sign an NDA before you share anything sensitive, and treat your data that way throughout.

Built in

Everything a production app needs.

The unglamorous details are what separate an app people trust from one they delete. These come standard on every project.

  • Access

    Sign-in that just works

    Phone OTP, Google, Apple and passkeys, with Face ID and fingerprint unlock.

  • Network

    Works offline

    Local-first data that syncs when the network returns, essential on Indian mobile networks.

  • Payments

    Payments and subscriptions

    UPI, cards, wallets and in-app purchases, with receipts validated on the server.

  • Speed

    Fast on real phones

    Tested on budget Android devices, not just flagships, with quick cold starts.

  • Access

    Accessible by default

    Dynamic type, screen-reader labels, contrast and touch targets that meet WCAG 2.2.

  • Security

    Secure and compliant

    OWASP MASVS practices, encrypted storage and consent flows aligned with India's DPDP Act.

Technology

Proven tools, chosen for the long run.

We pick mature, well-supported technology so your app is easy to hire for, cheap to maintain and ready for the next OS update.

Mobile

  • React Native
  • Expo
  • Flutter
  • Swift
  • Kotlin

Backend

  • Node.js
  • NestJS
  • PostgreSQL
  • Supabase
  • Firebase

Release

  • EAS Build
  • Fastlane
  • TestFlight
  • Play Console

Payments

  • Razorpay
  • UPI Intent
  • StoreKit 2
  • Play Billing

Quality

  • Detox
  • Maestro
  • Sentry
  • Crashlytics

Insight

  • Mixpanel
  • PostHog
  • A/B tests
Ways to work with us

Start where you are, with a fixed quote first.

Every engagement starts with an itemised proposal. Pick the model that fits what you already know.

  • 01Discovery sprintThe problem is clear, the solution isn't yet
  • 02Fixed-scope buildRequirements are understood and agreed
  • 03Dedicated product teamThe product is live and keeps growing

Questions

The things people
ask us first.

If yours isn’t here, send it over. We reply within 1 hour, guaranteed, and you’ll get a straight answer rather than a brochure.

Should I choose native or cross-platform app development?

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For most startups and business apps, cross-platform with React Native or Flutter is the better choice: one codebase, less to maintain and a single team. We recommend native Swift and Kotlin when the app leans heavily on the camera, AR, Bluetooth, background processing or brand-new OS features.

Do you publish the app to the App Store and Google Play?

+

Yes. We prepare the listings, screenshots, privacy disclosures and builds, submit to both stores and handle review feedback. Apps are published under your own developer accounts, so you own the listings outright.

Can you build the backend and admin panel too?

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Yes. We build the APIs, database and admin dashboard alongside the app, typically Node.js with PostgreSQL, or Supabase and Firebase where that fits better.

Can you take over an app someone else built?

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Often, yes. We start with a short audit of the code, dependencies and store accounts, then give you an honest read on what's worth keeping, what needs rewriting, and what it takes to get releases moving again.

How do you keep the app working after launch?

+

Our support plans cover monitoring, crash fixes, iOS and Android updates and dependency upgrades, plus new feature work. Mobile platforms change twice a year, and an app nobody maintains quietly stops working.

How much does a mobile app cost?

+

It depends on the screens, the platforms, the backend and the integrations the first release needs. We scope it with you and send a fixed, itemised quote before any work starts.

Atrix Studio

Where ambitious
ideas become reality.

We design, develop, and support digital experiences that turn ambitious ideas into meaningful products.