Case File №08 · F&B Flutter App classified
Production Flutter · iOS + Android · Live on the Store
Client identity held under NDA
Restaurant / F&B Vertical · Real Users · Real Orders
Ordering · Menu Sync · Payments · Kitchen · Loyalty
Filed Under: App Development / Confidential
Case File №08 · F&B Flutter App classified
Production Flutter · iOS + Android · Live on the Store
Client identity held under NDA
Restaurant / F&B Vertical · Real Users · Real Orders
Ordering · Menu Sync · Payments · Kitchen · Loyalty
Filed Under: App Development / Confidential
MM
Case File №08 · App Development · Confidential
Identity held. Receipts on the store.
F&B Vertical · NDA live, anonymous, accountable

F&B Flutter app. Real users. Real orders

Cross-platform iOS + Android ordering app for a restaurant / F&B client. Built in Flutter, live on the App Store and Google Play, real users placing real orders right now. The client identity is held under NDA — which means everything that follows has to earn credibility on technical specificity alone. No logo. No screenshots that fingerprint the brand. No vanity download numbers we can’t verify. What you get is the architecture, the stack, the production operations, and the choices we made. The receipts are on the store.

Build my Flutter app like this

no retainer trap. just truth.

Flutter · Dart
one codebase, two stores
iOS + Android · Production
Real-Time Menu Sync
Payment Integration · Kitchen Dashboard
no prototype that died in staging
Loyalty · Location-Aware Menus
on the store. live users.
Flutter · Dart
one codebase, two stores
iOS + Android · Production
Real-Time Menu Sync
Payment Integration · Kitchen Dashboard
no prototype that died in staging
Loyalty · Location-Aware Menus
on the store. live users.
№ 01 · The Brief

The
problem
on the table.

A restaurant chain that needed to own its ordering channel instead of paying third-party aggregators 30% of every meal. Apps had to ship to production — not die in staging like most agency app projects.

№ 01

Aggregator fees eating the margin

Every order through Uber Eats, DoorDash, or Skip costs the restaurant 20–30% in commission. On a $25 average ticket that’s $5–7.50 vanishing per order. The math gets ugly fast at volume. The only escape: your own ordering channel, owned end-to-end, with margins intact.

№ 02

Two stores, one team, one codebase

A native iOS app and a native Android app means two teams, two codebases, two release cycles, two QA cycles, two debugging sessions for every change. For an F&B operator with a finite budget and a need to actually launch — that math doesn’t work. Flutter became the only honest answer to the cross-platform question.

№ 03

The kitchen still has to fulfill

An ordering app without a kitchen-side counterpart is just a fancier phone call. Orders need to land on a tablet on the line, get acknowledged, get prepped, and get marked done — with the customer kept informed at every step. Half of agency app projects forget there’s a person on the other end of the order. This one couldn’t.

№ 04

Most agency app projects never ship

Brutal industry truth: a huge percentage of agency-built apps never see the App Store. They die in staging, in App Store review, in the “just one more sprint” loop. Apple’s and Google’s review processes are unforgiving for first-timers. Production deployment is its own discipline. If we couldn’t close the deployment loop, we’d be one more agency adding to that graveyard.

№ 02 · The Approach

Two disciplines.
One production app.

01

Cross-platform
mobile architecture

Flutter as the framework, Dart as the language, one codebase shipping to both iOS and Android. Real-time menu sync from the back-end. Payment integration via established processors. Kitchen-side companion view on tablet. Location-aware menus for chains with menu variance per outlet. Architecture decisions made for production reality, not greenfield idealism.

Flutter + Dart, single codebase Real-time menu sync architecture Payment processor integration Location-aware menu logic
+
02

Production deployment
discipline

The discipline that separates apps that ship from apps that die in staging. App Store Connect + Play Console submission, review-cycle navigation, code signing, TestFlight beta, Play internal testing, Crashlytics instrumentation, release management. The unsexy operations work that determines whether real users ever see the app. Anyone can write an MVP. Few can land it in the store and keep it there.

App Store Connect + Play Console TestFlight + Play internal testing Code signing + provisioning Crashlytics + release management
№ 03 · What We Shipped

The actual
deliverables.

Production app. Six functional modules shipped. Live on two stores. Real users placing real orders.

№01
Ordering

Customer Ordering Flow

The core customer-facing experience. Menu browsing, item customization, cart management, checkout. Designed for the thumb — one-handed phone use is the dominant pattern.

  • Menu browsing with category navigation
  • Item customization (modifiers, sides, notes)
  • Cart management + reorder
  • Pickup + delivery options
  • Order tracking with status updates
  • Order history per user
№02
Sync

Real-Time Menu Sync

Menu changes in the back-end propagate to the app in real time. 86 an item from inventory, it disappears from the app within seconds. Pricing updates instantly. New specials appear without a release cycle.

  • Real-time menu data sync
  • Inventory-aware item availability
  • Live pricing updates
  • Specials + LTOs scheduling
  • Per-outlet menu variance
  • Offline cache + reconciliation
№03
Payments

Payment Integration

In-app payments via established processor. Apple Pay + Google Pay support for tap-to-checkout. Saved card support, secure tokenization, refund flows, tip handling, multi-tender splits where relevant.

  • Card payments + tokenization
  • Apple Pay + Google Pay
  • Saved payment methods
  • Tip selection + handling
  • Refund + adjustment flows
  • PCI-compliant card handling
№04
Kitchen

Kitchen Dashboard

Companion view for the line. Orders land on tablet. Acknowledged, prepped, marked complete. Customer gets push notifications at each status change. The full operational loop closes inside the system — no manual hand-offs.

  • Order queue display
  • Order acknowledge + prep states
  • Estimated ready-time logic
  • Tablet-optimized UI
  • Status push to customer
  • Daily order reporting
№05
Loyalty

Loyalty Program

Points-per-dollar earning, redemption against menu items, tier thresholds, and birthday rewards. The mechanism that converts a one-time customer into a five-time-a-month regular.

  • Points earning per dollar spent
  • Points redemption at checkout
  • Tier thresholds + benefits
  • Birthday + anniversary rewards
  • Push-driven re-engagement
  • Loyalty member analytics
№06
Production

Store Deployment + Ops

App Store Connect submission, Play Console submission, both review cycles cleared, code signing, certificate management, Crashlytics instrumentation, release management process. The unsexy operations work that determines whether the app actually exists for users.

  • App Store Connect submission + approval
  • Play Console submission + approval
  • iOS code signing + provisioning
  • Android keystore + Play signing
  • Crashlytics + analytics wiring
  • Release management cadence
№ 04 · The Process

How it
actually got built.

01

Scope + architecture

Functional scope locked. Tech stack decision (Flutter chosen for cross-platform reality). Data model designed. Integration points identified for payments + back-end + kitchen tablet.

02

Core build

Flutter codebase scaffolded. Customer ordering flow built first — menu browsing, cart, checkout. Then kitchen dashboard. Then loyalty. Then real-time menu sync layer.

03

Payments + integration

Payment processor integration. Apple Pay + Google Pay wired. Tokenization tested. Back-end sync hardened. Push notification system installed. End-to-end flows tested on real devices.

04

Beta + review prep

TestFlight beta with client’s internal team. Play internal testing track. Bug triage cycle. App Store + Play Store listings written. Privacy policy + data declarations. Screenshots + marketing assets.

05

Submit + ship

App Store + Play Console submissions. Review feedback addressed. Approval received. App live on both stores. Crashlytics monitoring. Release cadence established for subsequent updates.

№ 05 · The Stack

The tools
under the hood.

Every one of these is something we run daily, not something we read a tutorial about.

Flutter
Cross-platform framework
Dart
Language + async runtime
Firebase
Auth · Firestore · FCM push
Xcode
iOS build + signing
Android Studio
Android build + Gradle
App Store Connect
iOS submission + TestFlight
Play Console
Android submission + tracks
Crashlytics
Production crash monitoring
№ 06 · More from the catalog

Three more
case files.

Other technical builds and multi-discipline programs from the catalog.

№ 07 · FAQ

Honest
questions.
Honest answers.

Why can’t we see the actual client name or app screenshots?+

Because the client signed an NDA, and we honor it. An agency that’ll quietly violate one client’s NDA to flex on a public website is an agency that’ll do the same to you. The trade we accept: less visual proof, more technical specificity. We’ll happily walk you through the actual app on a call, under whatever discretion makes sense, and we can put you in direct touch with the client as a reference if you’re seriously evaluating us for app work.

How do we know the app actually exists?+

Three honest answers: (1) The technical specificity here — Flutter, Dart, Firebase, App Store Connect, Crashlytics, Apple Pay integration, kitchen dashboard architecture — reads correctly to anyone who’s actually shipped a production app. (2) On an evaluation call we can demo the live app in real time under NDA. (3) We can put you in direct conversation with the client if the engagement is serious. You shouldn’t take any agency’s case study on faith; you should ask for a reference call. We always make ours available.

Why Flutter instead of React Native or native iOS + Android?+

The honest decision tree: Native iOS + Android is best when you need cutting-edge platform features or maximum performance — at the cost of two codebases. React Native is great when the team is already JS-heavy or sharing code with a React web app. Flutter wins when the priority is one codebase, identical UI on both platforms, fast iteration, and tight visual control. For an F&B ordering app where customer experience needs to be identical on iPhone and Pixel, where the team needs to ship updates fast, and where there’s no React web app to share with — Flutter was the right choice. Tech choices should follow product reality, not the engineer’s favorite framework.

How long does a production Flutter app like this take to build?+

For an F&B ordering app at the scope shown here — ordering, real-time menu sync, payments, kitchen dashboard, loyalty, location-aware menus, both stores live — 12–20 weeks is realistic, depending on integration complexity. First 2–4 weeks: scope + architecture + design. Weeks 4–12: core build. Weeks 12–16: payments + integration + beta. Weeks 16–20: store submission + review + launch. Anyone promising you a real production app in 4 weeks is either lying or shipping you a wrapper around a webview — which will be one-star reviewed into oblivion within a month.

What about ongoing maintenance after launch?+

Mobile apps aren’t ship-and-forget. iOS and Android push platform updates twice a year that often require app updates to maintain compatibility. Payment processors update SDKs. New iPhones and Pixels arrive with new screen sizes and capabilities. Crashlytics surfaces production issues. Apple and Google occasionally tighten store policies that need addressing. We offer a maintenance retainer for ongoing support — or you can take the codebase, take the documentation, and run it with your own team. The choice is yours, and either option is genuinely available.

Can you build a production app for our business?+

If your business has a real reason for an app — not vanity, but actual buyer behavior that points to mobile — yes, this is exactly the kind of work we run. We’ll start with a free scoping call, audit whether an app is genuinely the right answer for your business (sometimes it isn’t — sometimes a great PWA or mobile-optimized web flow is the honest answer), and if it is, sequence the build honestly. No 80-slide opportunity decks. Just the sequenced plan and someone accountable for shipping it.

№ 08 · You read the file. Now what?

Need
a real app.
that ships to
real users?

We’ll run a free scoping call, audit whether an app is genuinely the right answer for your business, and if it is, tell you — honestly — what a realistic timeline + budget looks like. Before you commit to anything.

no retainer trap. just truth.

info@themarketingmaniacs.com  ·  themarketingmaniacs.com  ·  SECP A827871  ·  Texas LLC