A37 — eCommerce marketing company logo

OperationsMobile Apps

Your best customers deservea faster way to buy.

A mobile app turns your repeat buyers into your highest-LTV channel: push notifications instead of ad spend, one-tap reorders instead of abandoned carts. A37 designs, builds, and ships it.

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iOS + Android · Storefront-integrated · Push & loyalty built in

Built on the platforms you already run

React NativeExpoFlutterSwift / SwiftUIKotlinShopify Storefront API

The algorithm owns your reach. An app gives it back.

Every channel you rent, social, search, marketplaces, gets more expensive every year. An app is the one channel where reaching your best customers costs nothing.

But most eCommerce apps fail for a predictable reason: they're a webview wrapper around the store, slower than the site and with no reason to exist. Nobody keeps an app that does nothing the browser can't.

A37 builds commerce apps around retention economics: push re-engagement, loyalty mechanics, and one-tap reorder flows that lift repeat purchase rate, the metric that decides D2C profitability.

What an app engagement covers.

Strategy & UX

  • Store data audit: repeat rate, reorder gaps, top SKUs, cohort behaviour
  • Feature map ranked by retention impact, not novelty
  • Reorder-first UX: information architecture and user flows
  • Clickable prototype before a line of code is written

Design & Build

  • iOS and Android from one codebase (React Native or Flutter)
  • Deep storefront integration: catalog, cart, checkout, customer accounts
  • Design system matched to your brand guidelines
  • App Store and Play Store listing, screenshots, and launch management

Retention Wiring

  • Push notification strategy: drops, restocks, replenishment, win-back
  • Loyalty and rewards integration with your existing programme
  • One-tap reorder from order history and saved bundles
  • Deep links from email, WhatsApp, and ads straight into product screens

Commerce Features

  • Native checkout with UPI, Apple Pay, Google Pay, and cards
  • Wishlist, back-in-stock alerts, and price-drop notifications
  • Ratings prompts timed to delivery, not install
  • Offline-tolerant browsing and image caching for slow networks

Owned reach beats rented reach.

We evaluate every app feature against one question: does it bring a customer back sooner? That's why our builds look less like a mini website and more like a retention machine.

Three numbers an app moves:

  1. 01

    Push economics

    Reaching your list costs zero CPM. The same audience on Meta costs more every quarter.

  2. 02

    Reorder speed

    One-tap reorder collapses the repurchase journey from minutes to seconds, and repeat rate follows.

  3. 03

    Data depth

    App events give you segmentation the pixel can't: session frequency, wishlist intent, scroll depth per SKU.

From store data to store listing.

  1. 1

    Week 1–2

    Discovery & scoping

    We audit your store data, define the feature set by retention ROI, choose the stack, and give you a fixed-price quote. No scope creep.

  2. 2

    Week 2–4

    UX & design

    Flows, wireframes, and a clickable prototype. You approve every screen before build starts, and the design system doubles as your app brand guide.

  3. 3

    Week 4–10

    Build & integrate

    App build against your storefront APIs with push, analytics, payments, and deep links wired in. Weekly builds on your phone via TestFlight and internal tracks.

  4. 4

    Week 10–12

    Store launch

    App Store and Play Store submission, ASO copy and screenshots, review handling, and a launch push campaign to your existing customers.

  5. 5

    Ongoing

    Post-launch

    Crash and performance monitoring, monthly release cycles, push calendar reviews, and a cohort dashboard tracking app vs web repeat rates.

The stack we build on.

App Frameworks

React NativeExpoFlutter

Native (when needed)

Swift / SwiftUIKotlin

Commerce Backends

Shopify Storefront APIWooCommerce RESTMagento GraphQL

Push & Engagement

Firebase Cloud MessagingOneSignalKlaviyo Mobile

Payments

RazorpayStripeApple PayGoogle PayUPI

Analytics & Attribution

Firebase AnalyticsMixpanelAppsFlyer

Is this the right fit?

  • You have an established store with meaningful repeat purchase volume
  • Your paid CAC keeps climbing and you want an owned channel
  • Consumables, fashion, or beauty: categories where reorders drive LTV
  • You're on Shopify, WooCommerce, or Magento with a clean catalog

When it isn't the right fit

Not the right first move if you're pre-revenue, build the store and retention flows first.

Scoped to your stack. Fixed-price build.

Custom pricing

Scoped per project after a free consultation

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Fixed-price quotes · You own the app and the code

  • Every build starts with a free consultation to map scope, stack, and timeline. Most apps ship in 10–12 weeks.

A37 Loop

Want this plus your whole marketing, on loop?

A37 Loop bundles strategy, content, publishing, ads, and reporting into one AI-powered subscription, from $99/mo. 15-day free trial, no card needed.

Explore A37 Loop

Let's talk about your growth.

Book a consultation with Sid, A37's founder — he'll review your brand and show you where the fastest wins are.

Book a consultation

Related services.

Operations

AI Automation

Automate the expensive and the repetitive — carts, CRM, reporting

Operations

Process Optimization

Operating systems for teams that outgrew spreadsheets

Acquisition

Performance Marketing

Paid ads managed against contribution margin, not ROAS theatre

Acquisition

Google Ads

Search, Shopping & PMax for eCommerce catalogues

Everything your eCom brand
needs to grow.

Book a consultation
Performance Marketing for eCommerce brands — Paid Ads, Conversion Optimization, Analytics & Reporting

Performance Marketing

  • Paid Ads
  • Conversion Optimization
  • Analytics & Reporting
SEO Services for eCommerce brands — Technical SEO, Keyword Strategy, Content, Rankings

SEO Services

  • Technical SEO
  • Keyword Strategy
  • Content
  • Rankings
Digital Marketing for eCommerce brands — Full-Funnel, Social Media, Email & WhatsApp, Analytics

Digital Marketing

  • Full-Funnel
  • Social Media
  • Email & WhatsApp
  • Analytics
Email Marketing for eCommerce brands — Klaviyo Flows, Campaigns, Segmentation, Deliverability

Email Marketing

  • Klaviyo Flows
  • Campaigns
  • Segmentation
  • Deliverability
WhatsApp Marketing for eCommerce brands — Broadcasts, Cart Recovery, Chat Automation, WhatsApp API

WhatsApp Marketing

  • Broadcasts
  • Cart Recovery
  • Chat Automation
  • WhatsApp API
Content & Video Creation for eCommerce brands — Copywriting, Design, Reels & Shorts, Blogs & Articles

Content & Video Creation

  • Copywriting
  • Design
  • Reels & Shorts
  • Blogs & Articles
Web Design for eCommerce brands — Next.js, Responsive Design, Prototyping, CMS

Web Design

  • Next.js
  • Responsive Design
  • Prototyping
  • CMS
UI/UX Optimization for eCommerce brands — CRO, A/B Testing, Checkout UX, Heatmaps

UI/UX Optimization

  • CRO
  • A/B Testing
  • Checkout UX
  • Heatmaps
Mobile Apps for eCommerce brands — iOS & Android, Push Re-engagement, Loyalty, One-Tap Reorder

Mobile Apps

  • iOS & Android
  • Push Re-engagement
  • Loyalty
  • One-Tap Reorder
Branding for eCommerce brands — Logo Design, Strategy, Style Guides, Visual Identity

Branding

  • Logo Design
  • Strategy
  • Style Guides
  • Visual Identity
AI & Automation for eCommerce brands — AI Funnels, Chatbots, CRM Automation, Personalization

AI & Automation

  • AI Funnels
  • Chatbots
  • CRM Automation
  • Personalization
Marketplace Mgmt for eCommerce brands — Amazon & Noon, Flipkart & Myntra, Listings & Ads, Buy Box

Marketplace Mgmt

  • Amazon & Noon
  • Flipkart & Myntra
  • Listings & Ads
  • Buy Box
Process Optimization for eCommerce brands — Order Flows, Fulfilment, Returns, SOPs & Dashboards

Process Optimization

  • Order Flows
  • Fulfilment
  • Returns
  • SOPs & Dashboards
eCom Consultants for eCommerce brands — Growth Audits, Advisory, Market Entry, Team Structure

eCom Consultants

  • Growth Audits
  • Advisory
  • Market Entry
  • Team Structure

Let's Work Together

Stop managing marketing. Start growing your brand.

Start your free 15-day trial. We'll show you exactly how A37 would run your brand's growth, no fluff, no pressure, no pitch deck.

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No card required · Cancel anytime · Custom plan for your brand

When a mobile app makes sense for a D2C brand

Apps are retention machines, not acquisition channels

Nobody downloads an app for a brand they have never bought from — but for repeat customers, an app is the highest-converting surface you can own: saved payment details, one-tap reorder, push notifications that cost nothing per send, and loyalty mechanics that live on the home screen. That makes an app a retention investment, and the honest prerequisite is repeat-purchase behaviour worth compounding: consumables, replenishment cycles, or a catalogue customers browse habitually.

A37 builds iOS and Android apps for exactly that use case: push re-engagement flows that outperform paid retargeting, loyalty and rewards baked into the experience, and one-tap reorder that shortens the path from craving to checkout. The app slots into the same measurement stack as your email and WhatsApp programmes, so channel overlap is managed instead of ignored.

Scope honestly, build once

Most brands should not build an app yet — and we say so when the audit shows it. When the economics do work, the build covers store integration (Shopify, WooCommerce, Magento), push infrastructure, loyalty logic, and analytics from day one, designed by the same conversion-first principles as our UI/UX practice.

Projects are custom-scoped and quoted after a free consultation. Post-launch, app campaigns run alongside the rest of your engine — push sequenced with email and WhatsApp under the Loop Managed plan — so the app compounds the system instead of fragmenting it.

The economics: when an app pays for itself

The arithmetic is simple and unforgiving: an app pays when (customers who buy 3+ times a year) × (uplift from push and one-tap reorder) exceeds the build and maintenance cost. For consumables and beauty brands past a few thousand monthly orders, it usually does; for occasion-purchase categories, it usually does not. The audit runs your actual cohort data through that arithmetic before anyone commits.

When the numbers do work, the app becomes the crown of your retention stack — sequenced with email and WhatsApp so each channel takes the message it does best rather than repeating the other two.

Launch is the start, not the finish

App graveyards are full of launches without operating plans. Ours ship with one: onboarding flows that earn push permission properly (the single metric that decides app ROI), a push calendar sequenced against email and WhatsApp so customers never get the same message thrice, and store-listing optimisation so organic installs compound. The app is reviewed in the same monthly report as every other channel — held to revenue, like everything else.

Maintenance is scoped honestly upfront: OS updates, store policy changes, and integration upkeep are a known annual cost, quoted before you build rather than discovered after.

Frequently asked questions

Should my D2C brand build a mobile app?

Only if you have real repeat-purchase behaviour: consumables, replenishment cycles, or high browse frequency. If most customers buy once a year, fix retention with email and WhatsApp first — we'll tell you honestly.

Do you build for both iOS and Android?

Yes, both — integrated with your Shopify, WooCommerce, or Magento store so catalogue, inventory, and orders stay in sync automatically.

What makes app push notifications worth it?

They cost nothing per send and reach customers who opted in on their home screen. Well-sequenced push re-engagement typically outperforms paid retargeting for repeat purchases.

How long does an app build take?

Typically 8–16 weeks depending on loyalty features and integrations, with a fixed timeline agreed at quoting. You own the code and the store listings.

Who runs the app marketing after launch?

Either your team, or ours: push campaigns and lifecycle sequencing slot into the Loop Managed plan alongside email and WhatsApp so the channels reinforce rather than repeat each other.

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