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Mobile App Development

From a web checkout to a mobile app icon on their phone.

Your repeat customers re-find you through ads you already paid for, while the brands they open every day live on their home screen. This build ships one Flutter codebase to both app stores, synced to your Shopify catalogue, with push notifications that bring buyers back on 90-day cycles. ₹3,00,000 + GST, live in 6–8 weeks, full code ownership.

See the 6–8 week process

Flutter, React Native, or native?

₹3,00,000 + GST6–8 weeks

Rated 4.9 on GoogleFixed price · one Flutter codebase

Abhishek DuttaAbhishek Dutta · Software Developer

200+

D2C brands launched

₹385Cr+

Revenue generated

98%

Client retention

The transformation

From re-buying the same customer to reaching them on a channel you own.

Before

Your repeat customers re-find you through ads you already paid for once — every reorder quietly costs you acquisition budget a second time.

After

An app icon on their phone and a push channel you own — you bring repeat buyers back without re-buying the click, so ad spend goes to winning new customers, not re-winning old ones.

Acquisition is the expensive part of every order; an owned push channel brings back buyers you've already won without paying for the click again. It earns its price once you're past roughly 1,000 orders a month with buyers who reorder inside 90 days — food, beauty, wellness, pet care. Quarterly, high-AOV categories should skip it.

The proposal

One codebase. ₹3,00,000. Both stores.

Everything is on this page: the scope, the process, what is not included and the terms. Read it, then pay and get started, or ask for the same thing as a formal quote.

Android & iOS App

iOS + Android · 6–8 weeks

An Android + iOS app from one Flutter codebase, synced to your Shopify catalogue in real time — not a PWA wrapped in a WebView.One invoice, one time — Apple and Google store fees are billed to you directly

₹3,00,000+ GST

Live on both stores in 6–8 weeks

One invoice, paid upfront through Zoho Billing. Your GST invoice from Grovesbox Private Limited is emailed the moment the payment clears. Work begins within one business day of a cleared payment.

Refunds work exactly as our terms say. Read the refund terms

UPI · Cards · Netbanking · EMI · Secure checkout via Zoho Billing

  • One Flutter codebase — live on App Store + Play Store
  • Shopify Storefront API — catalogue, orders, accounts synced
  • Push, deep linking, crash reporting, analytics at launch
  • Store submission handled, both stores
See all 7 milestones, deliverable by deliverable

Fixed scope, no mid-build surprises.

Fixed written scope before kickoff — extras are named and priced there, never mid-build. Read the terms

What clients say

“Switching to a dedicated website was the best decision for my business, especially after the struggle of managing endless manual inquiries on social media.”

The team at Growww Ecommerce took my vision and turned it into a professional reality in just one week, handling everything from payment gateways to shipping integrations. Their guidance on advertising and backend setup has been invaluable, and I only wish I had partnered with them sooner. If you're looking to scale your sales with a seamless online store, I highly recommend Raghu and his team—they make the technical side feel effortless.

NavyaFounder, The Horizon CollectionsRated 5 out of 5
6–8 weeksLive on both stores

Framework choice

Three ways to build. We recommend the fit, not the favourite.

This proposal prices the Flutter build, the right call for most projects. The other two exist for specific reasons, and we'll say honestly which bucket yours falls into.

  • Flutter

    Our default for most projects — one codebase for iOS and Android, smooth animations, near-native performance, and one build to pay for instead of two. This proposal's build.

  • React Native

    When your team is already deep in JavaScript / React — code-sharing with a Next.js web app is meaningful. Similar price range to Flutter; we scope it on the call.

  • Native Swift / Kotlin

    When platform-exclusive features are the point: ARKit, WearOS, CarPlay, HealthKit, widgets. Two codebases, so roughly twice the Flutter build; we quote it on the call. We'll say honestly if you need it.

The ceilings

You're not failing — the web checkout is at its ceiling.

Six ceilings brands hit before they buy an app. If two or more read like your week, this build is for you.

  • Competitors' apps are stealing your repeats

    Big D2C brands have push notifications, exclusive drops, and an icon on the customer's phone. A web checkout is less sticky than an app — and repeat purchases follow stickiness.

  • Your freelancer vanished after launch

    The app went live, the developer went quiet, crashes are piling up, and nobody owns the codebase. You need a team that stays after launch, not before payment.

  • Your MVP is buggy and unfixable

    Stuttering scrolls, janky animations, push that works on one platform only. A tangle of unsupported libraries needs a fresh architecture, not more patches.

  • Stuck in store-review loops

    Guideline 4.3, privacy flags, permission rejections — weeks burning while your developer guesses.

  • Quoted ₹50L for a simple app

    Big agencies quote enterprise prices for a standard build. You need a well-built app at a fixed price that can scale — not freelancer roulette either.

  • You're shipping blind

    No crash monitoring, no funnels, no cohort retention. Product decisions run on App Store reviews and gut feel. Analytics belongs at launch, not later.

Related

Services that pair well

Timeline

Discovery to both stores — 6–8 weeks.

You test a real build on your own phone every week from week 2.

  1. Weeks 1–2

    Discovery + design

    Written scope, wireframes, Figma sign-off

  2. Weeks 2–6

    Sprint builds

    Weekly TestFlight / Firebase builds on your phone

  3. Inside the sprints

    Backend + integrations

    Shopify sync, push, deep links, analytics

  4. Weeks 6–8

    Store submission

    Both stores, submission handled by us

Total

Live on both stores, full handover, 30-day support

6–8 weeks

Who you’ll talk to

The people who answer your call.

We are a mobile app development company in India inside an ecommerce team: the people who build your app also know the Shopify store it syncs with.

Dhushyant Deepak Chand Puredla helping Tarun Sai Kotni at his desk at our Visakhapatnam office

  • Call languages

    Telugu, English, Hindi, Kannada

  • Hours

    Mon–Fri, 9:00 am–7:00 pm IST

  • Phone

    +91 98666 62226

  • Office

    1st Floor, YBR Nilayam, Dayal Nagar Colony, Vishalakshi Nagar, Visakhapatnam, Andhra Pradesh 530043, India. Open in Google Maps (opens in a new tab)

  • Other cities

    Meet in person: by appointment in Bengaluru, Hyderabad, Chennai, Mumbai, Delhi NCR, Surat

  • Call time

    You pick morning, afternoon or evening, Monday to Friday.

Meet the whole team

Fit check

Who this is for, and who it is not

This is for you if

  • You sell past about 1,000 orders a month.
  • Your buyers reorder within 90 days — food, beauty, pet care, wellness. Push notifications compound on short repurchase cycles.

Not for you if

  • You are below about 1,000 orders a month. An app icon won’t fix repeat rate at that volume; the store and the funnel will. The ₹50,000 + GST store build plus the ₹75,000 + GST CRO pass returns more.
  • Your buyers purchase quarterly at a high order value (apparel, gifting, home decor). Skip the app and put the money into the mobile web store; we’ll tell you that on the discovery call.
  • You are a student or looking for a job. See our open roles and our programs.
Under the line? The ₹50,000 + GST store buildFix the funnel first — ₹75,000 + GST CRO pass

Agencies

  • You run an agency? We take white-label and sub-contract work. Pick “I’m an agency or developer” on the form and tell us what you need.

The upgrade ladder

One team, every rung. Buy the one your money is leaking from.

Every rung pulls more orders out of traffic you already pay for. You don't climb it in order — you start where the leak is. Here's the honest map.

Growww Tech service upgrade ladder — price, who each rung is for, and what it changes.
UpgradePriceBest whenWhat changes
Shopify store₹50,000+ GSTYou're selling in DMs or on a stock template — your first real store.Off the DMs onto your own Shopify store — payments, shipping and GST set up, live in 4 weeks.
CRO pass₹75,000+ GSTYou already have traffic, but it leaks at the cart and the checkout.344 checks implemented on your live store — plug the cart and COD-RTO leaks. More orders from the same ad spend.
UI/UX Design₹1,50,000+ GSTThe store sells, but its pages are not built around your brand — you want every page drawn for it, phone first.All 15 store templates drawn phone-first for your brand, with a design system your team keeps. Design only — the build is separate.
Headless Next.js₹4,00,000+ GSTRoughly ₹50L+/month and the theme is capping your speed, design, or SEO.A storefront you own, built to beat Google’s 2.5-second LCP bar for a good mobile load.
Enterprise bundle₹5,00,000+ GST₹2Cr+/month, and you want store, design, speed and funnel rebuilt together — one team.Headless + store + UI/UX + CRO folded in — about ₹6,75,000 of work for ₹5,00,000.
Mobile appYou’re here₹3,00,000+ GSTRoughly 1000+ orders/month and buyers who reorder inside 90 days.An owned home-screen channel — reach repeat buyers by push instead of re-buying the ad. Repeat orders up, re-acquisition spend down.

Our recommendation:

plug the leak before you widen the pipe. A CRO pass earns its fee on traffic you already have; headless and an app pay off only once speed or repeat-rate is the actual ceiling. If a cheaper rung returns more for you right now, we’ll say so on the call rather than sell you the bigger number.

Process

How the 6–8 weeks run — milestone by milestone.

Seven milestones from discovery to launch, each with what we ship and what you receive.

  1. Milestone 01 · Week 1

    Discovery + scope

    A 30-minute call on the app's purpose, audience, and business model — then a fixed scope in writing before kickoff.

    • Below roughly 1000 orders/month, we'll usually tell you an app won't fix repeat rate yet — spend the budget on the store and CRO first.
    • The scope document covers features, the tech-stack recommendation, milestones, and the fixed price — no hourly billing balloons.
    • You get access to our client portal at portal.growwwtech.com for feedback, approvals, and progress tracking.

    You’ll receive

    • Straight fit verdict on the call
    • Fixed written scope before kickoff
    • Client portal access

  2. Milestone 02 · Weeks 1–2

    Design in Figma

    Wireframes and user flow first, then high-fidelity Figma mockups for the key screens. Design approval before code starts.

    • Two rounds of consolidated feedback via the portal.
    • Designed on real platform constraints — what iOS and Android actually allow — so the build matches the file.

    You’ll receive

    • Wireframes + user flow
    • High-fidelity Figma mockups
    • Design sign-off before code

  3. Milestone 03 · Weeks 2–6

    Build in sprints

    One Flutter codebase, both platforms — 2-week sprints with weekly demo builds on your own phone.

    • Weekly builds distributed via TestFlight (iOS) and Firebase App Distribution (Android) — you test on real devices every week and flag issues early.
    • Flutter is our default for most projects: one codebase, near-native performance, and one build to pay for instead of two.

    You’ll receive

    • Weekly TestFlight / Firebase builds
    • One Flutter codebase — iOS + Android

  4. Milestone 04 · Inside the sprints

    Backend + Integrations

    Shopify Storefront API sync, push, deep linking, payments, and analytics — wired in as feature branches merge, not bolted on at the end.

    • Products, inventory, orders, and customer accounts synced from your Shopify store in real time.
    • Push notifications (OneSignal / Firebase) for order updates, abandoned carts, and flash sales; deep-linked product URLs so Meta Ads click straight into app product pages.
    • Crash reporting (Sentry / Crashlytics) and product analytics (Mixpanel / GA4) instrumented from day one — you ship with eyes open, not blind.

    You’ll receive

    • Shopify Storefront API integration
    • Push + deep linking wired
    • Crash reporting + analytics dashboards

  5. Milestone 05 · Weeks 6–8

    Store Submission

    App Store and Play Store submission handled by us, start to finish.

    • Metadata, screenshots, keywords, privacy policy, and data-safety forms prepared for both stores.
    • The common rejection traps (guideline 4.3 spam, 5.1.1 privacy, overbroad permissions) are designed around from scoping, not patched in review loops.

    You’ll receive

    • Both store submissions handled
    • Store assets: screenshots, descriptions, icons
    • Fast response to any review notes

  6. Milestone 06 · Week 8

    Launch + 30-day support

    Public launch on both stores, then 30 days of bug-fix support included. You own everything.

    • Complete source code, App Store Connect and Play Console access, signing certificates — all yours from day one, IP-assignment in the contract.
    • An optional monthly retainer covers OS updates, new features and store-review management, quoted on the call. Or take it in-house — the handover is written for your team.

    You’ll receive

    • Live on App Store + Play Store
    • 30-day bug-fix support
    • Full code + store access handover

  7. Milestone 07

    Out-of-Scope Work Policy

    Any request beyond the fixed written scope is out-of-scope work — handled transparently, never silently billed.

    • Custom marketplace backends, offline-first field-service patterns, and AI features are scoped and priced separately — named before kickoff.
    • Smaller extras are tracked in the Growww Tech client portal and billed only with your approval.

    You’ll receive

    • Transparent time tracking via portal
    • Prior intimation before any additional billing

Scope boundaries

What we need from you. What we don't do.

No surprises after kickoff. Here is what each side brings, in writing.

What we need from you

  • Apple Developer and Google Play accounts — registered in your name; we handle everything inside them
  • Logo and brand assets — identity creation is a separate service
  • Access to your Shopify store (or backend API) for the integration
  • Product photography — the app renders your real catalogue
  • A decision-maker on the weekly build review
  • Consolidated design feedback within 3 working days per round

What’s not included

  • Games and full VR apps — different discipline; AR features inside a consumer app are scoped separately
  • Custom marketplace / multi-tenant backends — scoped and priced separately before kickoff
  • AI features (LLM chat, image search, recommendations) — scoped separately; we'll say which ones justify the complexity
  • Logo and brand-identity design — that's Brand Foundations, priced separately
  • Copywriting, product photography, and video
  • Store fees and subscriptions — Apple/Google accounts, Firebase overages, push volumes are billed to you directly
  • Ongoing development after the 30-day support window — an optional monthly retainer, quoted on the call

FAQ

Asked before every app kickoff.

The complete app: one Flutter codebase shipping to both the App Store and Play Store, custom Figma design, Shopify Storefront API sync (products, inventory, orders, accounts), push notifications, deep linking, crash reporting and analytics wired at launch, store submission handled end-to-end, 30 days of bug-fix support, and full code ownership. Fixed price, 6–8 weeks.

Flutter for 80% of projects — one codebase, both platforms, near-native performance. React Native if your team is already deep in JavaScript and code-sharing with a React web app matters. Native Swift + Kotlin when platform-exclusive features (ARKit, WearOS, CarPlay) are the point — that's two codebases at ₹8,00,000–₹15,00,000, roughly 2x Flutter. We recommend the fit on the first call, not the one we'd rather build.

That's the standard build. Flutter app + Shopify Storefront API with synced inventory, products, orders, and customer accounts. Push notifications for order updates, abandoned carts, and flash sales. Deep-linked product URLs so Meta Ads and Google Ads click straight into app product pages.

98% of our apps clear review on the first submission. The common rejection reasons — guideline 4.3 spam, 5.1.1 privacy, intrusive permissions, metadata gaps — are designed around from scoping. Vague descriptions, missing privacy policies, and overbroad permissions cause most failures; all three are part of our submission prep.

You do, from day one. Complete source code, App Store Connect access, Play Console access, signing certificates, and backend credentials all belong to you, with an IP-assignment clause in every contract. No hostage apps.

30 days of bug-fix support is included. After that, an optional retainer from ₹30,000/month covers OS compatibility updates, new features, analytics reviews, and store-review management — or you take it in-house with the full handover. Maintenance of what we shipped isn't held hostage either way.

Complex builds — custom marketplace backends, multi-tenant SaaS, offline-first field apps, AI features — run ₹10,00,000–₹40,00,000 and are scoped separately before kickoff, never discovered mid-build. The ₹3,00,000 covers the standard consumer app on a Firebase/Supabase or existing backend.

Yes — LLM chat, image-based product search, on-device ML — scoped as separate line items. We scope AI carefully: not every feature justifies the complexity cost, and we'll say which ones are worth it for your catalogue and volume.

Below roughly 1000 orders/month, an app icon won't fix your repeat rate — the store and the funnel will. Spend the budget on the ₹50,000 store build and the ₹75,000 CRO pass first. Also skip the app if your customers buy quarterly at high AOV (apparel, gifting, home decor) — push notifications earn their keep on 90-day repurchase cycles, not annual ones.

Single invoice via Zoho Billing (UPI, cards, netbanking, EMI) — the GST invoice lands in your inbox the moment payment clears. Kickoff within one business day of the discovery call.
One codebase, both stores

₹3,00,000. One codebase. An icon on their home screen.

A 30-minute call with our team. We tell you whether this fits your store, and if a cheaper option fits better, we say so. The price is fixed in writing before work starts.

Calls Monday to Friday, in Telugu, English, Hindi or Kannada.

₹3,00,000 + GST · iOS + Android · live in 6–8 weeks