Flutter app development · India

Flutter apps that ship to iOS and Android from one Dart codebase

Webzenia builds production Flutter apps where iOS and Android run off one Dart codebase, identical on both stores without two design passes.

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60fps
Identical UI on iOS and Android
1
Dart codebase, both stores
12 weeks
Idea to launch-ready Flutter MVP
Trusted by ambitious brands worldwide, small and large

Proof · the numbers

One Dart codebase, both stores, native feel.

Flutter ships one codebase to both stores without the usual cross-platform compromises. These are the numbers from doing it right.

45%
Lower cost than two native builds.
2x
Faster feature releases across both stores.
120+
Apps shipped to the stores.
94%
Clients who renew each year.

A field sales team lifts daily reporting from 34% to 91%.

Modern software company workspace with a product team — B2B Field Sales Management SaaS, Delhi · Webzenia Mobile App Development case study
Industry
B2B Field Sales Management SaaS · Delhi
Approach
Cross-platform field-sales app with offline GPS check-ins
Outcome
Report completion 34% to 91%, build cost 40% lower
Read the story

What Flutter development actually is

One Dart codebase that ships the same app to both stores, from one team

Flutter builds one app in Dart that runs on both stores from a single codebase, drawing its own pixels so it looks the same on every phone. One team, one budget.

Flutter · one codebasemain.dart · WIDGET TREEMaterialAppScaffoldListViewRow · Text · Iconhot reloadSAME APP · BOTHiOSAndroidDart · one codebaseiOS · Android · Web · DesktopOne Dart codebase — iOS and Android, from one team.

One codebase, both stores

iOS and Android from the same Dart code, so a feature is built once and shipped to both, not twice.

Pixel-identical UI

Flutter draws its own widgets, so the app looks and behaves the same on every device, not almost the same.

Near-native speed

Compiled to native ARM with the Impeller engine, so it is fast enough for the vast majority of apps.

What Flutter gives you

What Flutter gives your build

One Dart codebase that draws its own UI, so both apps look identical and ship from one team.

Widget treewidget inspectorWidget treeScaffoldAppBarColumnCardPaddingTextElevatedButtonOrdersFresh KiranaOrderCard 92×92everything is a widget, so the UI looks like you

Widget-based UI

Everything is a widget, so custom, brand-true interfaces are built fast without fighting the platform

Output

a UI that looks like you, not the default

WidgetsCustom UI
Hot reload412 ms412 msedit to running appstate preservedlib/product_card.dartsavedReloads today128 · avg 0.4severy change lands live, so more iterations fit the budget

Hot reload dev speed

Code changes appear in the running app in under a second, so design and logic get tuned live

Output

more iterations inside the same budget

Hot reloadFast
Dart & platform channelsone languagepayments.dartconst channel = MethodChannel ("app/payments")final ok = await channel .invokeMethod("upiPay", args)Routed to nativeiOS · SwiftFlutterMethodChannel → handleAndroid · KotlinMethodChannel → onMethodCallDart everywhere, dropping to Swift or Kotlin when needed

Dart & platform channels

Written in Dart, with platform channels dropping to Swift or Kotlin for anything native

Output

one language, full device access

DartChannels
Pixel-identical0.0% diffFresh KiranaOrder nowiPhone 15Fresh KiranaOrder nowPixel 8the engine draws every pixel, so both are identical

Pixel-identical on both

Flutter draws its own pixels with its engine, so the app is the same on every iPhone and Android

Output

no per-platform UI surprises

Own engineConsistent
Material & Cupertinoboth built inMaterial · AndroidFilledSwitchSliderCupertino · iOSFilledSwitchSliderone codebase, each store feeling right at home

Both design languages, built in

Material and Cupertino ship in the box, so the app can feel native to each store from one codebase

Output

iOS and Android that each feel right

MaterialCupertino
Web & desktop6 targetsfreshkirana.appFKFresh Kiranarunning on the web, same Dart codeflutter buildiOSAndroidWebWindowsmacOSLinuxmore surfaces from the code you already built

Web & desktop reach

The same Flutter code extended to the browser and desktop when the product needs it

Output

more surfaces from the code you already built

WebDesktop

Flutter, or two native apps

When one Flutter codebase wins, and when native is worth two

Flutter wins when both stores on one budget matter most; native wins when platform feel is the product. We tell you which, before the build.

Two native appsSwift + Kotlin, two teamsFlutter (one codebase)Both stores, one team
Cost & timeTwo codebases, often two teams and close to double the cost.One codebase, one team, roughly one budget for both stores.
UI consistencyNative per platform, which is a feature when you want it.Identical on both stores; Flutter draws every pixel.
PerformancePeak performance for games and heavy graphics.Near-native; ample for the vast majority of apps.
Best forApps built deep into one platform, or pushing the hardware.Most apps that need both stores on a startup budget.
Want a platform-specific build instead?

If your audience is on one platform and the native feel is the point, see Android or iOS. If you want both stores from one team, Flutter is usually the most efficient path. We help you decide in the first conversation.

How we build with Flutter

Built for founders who need both stores on one runway

Flutter is the efficient answer when the goal is reach, not a platform-specific flex. We build it so one codebase does not become a compromise.

  1. 01of 04
    One team, both storesRunway efficiency

    Two native apps means two builds, two teams and close to twice the spend.

    Flutter lets one senior team ship iOS and Android from the same code, so your runway buys reach on both stores, not a single platform twice over.

    Our methodOne codebase, one team, both stores.
  2. 02of 04
    Consistent on every phoneSame on both

    A cross-platform app that looks broken on half the phones fails half its users.

    Flutter draws its own widgets, so the app is pixel-identical across iOS, Android and the device range, tested down to the low-RAM phones common in India.

    Our methodIdentical UI, tested across the device range.
  3. 03of 04
    Native when it countsNo dead ends

    The fear with cross-platform is hitting a wall on a platform feature.

    We use platform channels to drop to native Swift or Kotlin for the rare feature Flutter does not cover, so one codebase never becomes a dead end.

    Our methodPlatform channels for native features.
  4. 04of 04
    You own itIP & no lock-in

    Your app is a company asset; the code and both store listings should be yours.

    Your repo, your Play and App Store accounts, full IP and a clean handover, so the app is something you control and can move.

    Our methodFull IP, your store accounts, clean handover.

What the engagement covers

From idea to a live app on both stores, end to end

Not a contractor for hire. Discovery, the build, the integrations, the store launches and the handover.

Scope · MVPSTEP 01MVP · V1Onboarding & loginBrowse catalogueCart & checkoutOrder trackingPLATFORMSAndroidiOSTIMELINE8 wksto MVP v1We pin the MVP, the platforms and the plan.

Discovery & scope

We pin the core job, the platforms and the MVP scope before any code, so the first build is the right one.

  • Scope
  • Platforms
Build · cross-platformSTEP 02BUILDStackDart · FlutterCodebaseone · 2 OSCIpassingOne Flutter codebase, both platforms.

Design & build

A brand-true design and a Flutter build in Dart, structured so the codebase stays clean as it grows.

  • Dart
  • Widgets
Integrate · servicesSTEP 03₹PaymentsUPI + cardsliveAAuthOTP loginliveMMapslocationliveNNotifypush · FCMliveWired to payments, auth and the rest.

Integrate

Your APIs, Firebase, payments, auth and maps, plus native channels where a platform feature needs them.

  • Firebase
  • Native channels
QA · both platformsSTEP 04DEVICE LABPixel 7Android 14iPhone 15iOS 18Galaxy A14Android 13iPad AiriPadOS 17CRASH-FREE · 7D99.6%sessions cleanTested across Android and iPhone.

Test on real devices

QA across iOS and Android devices, with crash and performance monitoring, before either store sees it.

  • Both OS
  • Crash-free
Launch · both storesSTEP 05SShopApp4.8 · 2,400 reviewsLiveInstallBoth stores+ moreLive on Google Play and the App Store.

Launch on both stores

Play and App Store listings, policy and review handled, with staged rollouts on each.

  • Play
  • App Store
Handover · yoursSTEP 06HANDED OVERRepo · transferredStore console · your accountDocs · completeSUPPORT99.9% SLAa team that answersCode, store access and support, in your name.

Handover & support

Clean code, docs and full access in your name, then updates and OS-version support on a retainer.

  • IP yours
  • Updates

Industries we build Flutter apps for

Built for the businesses that need every phone

A D2C brand, a fintech app and a logistics tracker all need to be on both stores from day one, without paying for two builds.

Retail & D2C

Shopping, loyalty and orders.

Fintech

Wallets, lending and UPI.

Logistics & on-demand

Tracking, delivery and booking.

Healthtech

Consults, records and reminders.

Edtech

Courses, classes and tests.

SaaS & services

Companion apps for web products.

Our stack

Tools we use to build with Flutter

The stack behind Flutter apps that ship to both stores from one codebase.

Flutter
Why Flutter

Flutter builds natively-compiled apps for iOS and Android from one codebase, with its own fast rendering engine.

How we excel

We build in Flutter for a single codebase across both stores, so a startup gets iOS and Android from one team and budget, with near-native performance.

Cross-platformPerformanceOne code
FlutterYes
React NativeYes
Native ×2Costly
IonicWeb

How the build runs

From scope to live on both stores, in stages

A Flutter build that proves the core flow before it scales, shipping to Play and the App Store together.

01Weeks 1–2Planned

Scope the app, design the screens

We pin the core flow, the platforms and the MVP scope, and design the key screens. You sign off before the build.

  • Scopeset
  • Platformschosen
  • Screensdesigned
  • Stackset
02Weeks 3–9Building

Ship a real app on both stores

We build in Flutter, wire in payments, APIs and notifications, add native channels where needed, and test on real iOS and Android devices.

  • Flutterbuilt
  • Paymentswired
  • Both OStested
  • QApassed
03OngoingHeld

Ship to both stores, then maintain

We launch on Play and the App Store with staged rollouts, watch crash and performance data, and ship updates on a retainer.

  • Playlive
  • App Storelive
  • Crasheswatched
  • Updatesheld

Reported against shipped scope, crash-free rate and store status, not just hours billed.

Reported on shipped work
ShippedCrash-freeBoth stores

A farm grocery brand reaches 1,840 app orders a month.

Natural unbranded food product still life — Direct-From-Farm Grocery Brand, Bangalore · Webzenia Mobile App Development case study
Industry
Direct-From-Farm Grocery Brand · Bangalore
Approach
Grocery app with delivery-slot booking + subscriptions
Outcome
Orders 0 to 1,840/month, AOV 1,240 vs 890 web
Read the story

Our commitment

Our commitment, in writing

A Flutter build goes wrong when one codebase becomes a compromise, when it lags on low-end phones, or when the IP is unclear. We build against all three.

  • You own the IP

    Your repo, your Play and App Store accounts, full IP and a clean handover. The app is your asset, not ours.

  • No compromise build

    Native channels where a platform feature needs them, so one codebase never means a feature you cannot ship.

  • Tested on real devices

    QA across iOS and Android, tuned for low-RAM phones on 4G, so it works for your users, not just the simulator.

  • A senior team, named

    Senior Flutter engineers on your build with one accountable lead, not a rotating junior bench.

Your app is your asset: code, both store listings and all.

FAQ · 07 questions

Flutter app development, answered.

Still weighing it up?

The first audit is free and produces a written, scoped estimate. No retainer pitch on the call.

Book a free audit →

Keep exploring

Explore Mobile App Development

Part ofMobile App Development

iOS App Development

Native iOS apps built to rank and retain on the App Store.

Android App Development

Android apps tuned for the mid-range devices India runs on.

Cross-Platform Apps

One codebase shipping to iOS and Android, no compromise.

React Native Development

Native-feel React Native apps from a single codebase.

eCommerce App Development

Shopping apps that drive repeat orders and bigger baskets.

On-Demand App Development

Booking and delivery apps for India's on-demand market.

Enterprise App Development

Internal apps built around how your operations actually run.

SaaS App Development

Product apps engineered from MVP to enterprise scale.

App UI/UX Design

Interfaces tested with real users before a line is built.

Accepting new clients · 2026

Want one Flutter codebase for both stores?

Tell us what your app needs to do. We will map the screens, the Dart architecture, and a realistic build path before you commit to anything.

What happens next

  1. 1You send detailsYour app idea and key features
  2. 2We scope itScreens, Dart architecture, build path
  3. 3We reply on WhatsAppHonest plan, no sales pressure

Tell us about your app.

+91
Chat on WhatsApp

No call required. We reply within 2 business hours.