# Hire a Flutter Developer

> Hire Simon Dziak, a senior Flutter developer in Miami, to build or fix iOS, Android and web apps from one codebase. Fixed scope, listed prices.

Canonical: https://app369.com/service/flutter-development/

App369 is one senior Flutter developer, Simon Dziak, working to a fixed scope at listed prices. He builds and fixes Flutter apps for [iOS](https://app369.com/service/ios-development/), [Android](https://app369.com/service/android-development/) and web from one Dart codebase, with Firebase behind them, from Miami. It's the stack he uses to build and run [Workspace369](https://app369.com/case-studies/workspace369/).

Fixed prices

[**All fixed-price offers**](https://app369.com/fixed-price/)

- [from $450**App Fix Ticket**One reproducible bug in an existing mobile or web app, diagnosed and fixed.**See scope and start**](https://app369.com/fixed-price/flutter-firebase-bug-fix/)
- [from $1,495/month**Monthly Dev Subscription**One development request at a time, most back in about 2 business days. Pause or cancel anytime.**See scope and start**](https://app369.com/fixed-price/monthly-dev-subscription/)
- [from $6,000**Web App MVP Sprint**A scoped web app MVP in Vue/Nuxt or React, with a fixed quote after a $450 written scoping.**See scope and start**](https://app369.com/fixed-price/web-app-mvp/)

Something else? [**Describe your project**](https://app369.com/contact/)

How to hire

## Ways to hire a Flutter developer

Pick the route that matches what you have now. Every price below is the listed price; nothing is billed by the hour.

- **One bug fixed in a Flutter app you already have**[**App Fix Ticket**](https://app369.com/fixed-price/flutter-firebase-bug-fix/)**Price:** $450 diagnosis, credited toward the $1,200 fix**Timing:** 3 business days for the diagnosis, then 5 for the fix
- **Ongoing work on a Flutter app you already have**[**Monthly Dev Subscription**](https://app369.com/fixed-price/monthly-dev-subscription/)**Price:** from $1,495/month**Timing:** Most requests back in about 2 business days. Pause or cancel anytime.
- **A new Flutter app for iOS and Android**[**Written scoping, then a fixed quote**](https://app369.com/contact/)**Price:** Quoted in writing after the scoping**Timing:** Dates are in the quote
- **An app built in FlutterFlow that needs a developer**[**Hire a FlutterFlow developer**](https://app369.com/service/hire-flutterflow-developer/)**Price:** $450 diagnosis, credited toward the $1,200 fix**Timing:** Needs the exported code; the diagnosis takes 3 business days
- **A first version built as a web app**[**Web App MVP Sprint (Vue/Nuxt or React)**](https://app369.com/fixed-price/web-app-mvp/)**Price:** from $6,000, after a $450 scoping**Timing:** About 4 weeks from the signed quote

| **You need** | **How you hire** | **Price** | **Timing** |
| --- | --- | --- | --- |
| **One bug fixed in a Flutter app you already have** | [**App Fix Ticket**](https://app369.com/fixed-price/flutter-firebase-bug-fix/) | $450 diagnosis, credited toward the $1,200 fix | 3 business days for the diagnosis, then 5 for the fix |
| **Ongoing work on a Flutter app you already have** | [**Monthly Dev Subscription**](https://app369.com/fixed-price/monthly-dev-subscription/) | from $1,495/month | Most requests back in about 2 business days. Pause or cancel anytime. |
| **A new Flutter app for iOS and Android** | [**Written scoping, then a fixed quote**](https://app369.com/contact/) | Quoted in writing after the scoping | Dates are in the quote |
| **An app built in FlutterFlow that needs a developer** | [**Hire a FlutterFlow developer**](https://app369.com/service/hire-flutterflow-developer/) | $450 diagnosis, credited toward the $1,200 fix | Needs the exported code; the diagnosis takes 3 business days |
| **A first version built as a web app** | [**Web App MVP Sprint (Vue/Nuxt or React)**](https://app369.com/fixed-price/web-app-mvp/) | from $6,000, after a $450 scoping | About 4 weeks from the signed quote |

### **What you get**

- One developer, Simon, from the scope to the release.
- A written scope and a fixed price before any work starts.
- Code as pull requests to your own repository, with a note on what changed and how it was tested.
- A regression test with every bug fix.

### **What isn't included**

- New features inside a bug-fix ticket
- Guaranteed App Store or Google Play approval
- Your hosting, Firebase, Stripe or AI bills
- More than one request in progress at a time on the monthly plan
- Calls, except paid consultations ($100 per 15 minutes, paid upfront)

What Simon builds

## **Flutter Development Services**

01

### **Cross-Platform App Development**

Build one Flutter codebase that deploys to iOS, Android, web and desktop. Flutter compiles to native machine code on mobile and draws its own UI, so screens look and behave the same on every platform without a second team.

02

### **Widget-Based UI Development**

Flutter's composable widget system enables pixel-perfect, brand-consistent interfaces across platforms. Simon builds custom widget libraries, complex animations, and adaptive layouts that follow Material Design 3 and Cupertino guidelines simultaneously.

03

### **Firebase Integration**

Full backend integration with Firebase including Firestore real-time database, Authentication, Cloud Functions, Cloud Messaging for push notifications, and Crashlytics for monitoring.

04

### **State Management & Architecture**

Scalable app architecture using Riverpod or BLoC patterns with clean architecture principles. This approach keeps the code testable and maintainable as it grows from MVP to enterprise, without rewrites.

05

### **Custom Animations & Motion Design**

Flutter's Impeller renderer, the default on iOS and on Android API 29+ since Flutter 3.27, precompiles shaders so animations don't stutter on first run. Simon builds custom implicit and explicit animations, hero transitions, and micro-interactions that improve user experience beyond what standard native development offers.

06

### **Plugin & Package Development**

When existing packages don't meet requirements, Simon builds custom Flutter plugins using platform channels to access native iOS and Android APIs directly. These plugins integrate with device hardware including cameras, Bluetooth, NFC, and biometric sensors.

How it works

## **The process**

2. 01 ### **Discovery & Requirements** Simon analyzes your business goals, target platforms, and feature requirements to define the Flutter project architecture, select the right state management approach, and create a detailed development roadmap.
3. 02 ### **UI/UX Design & Prototyping** Simon designs platform-adaptive interfaces in Figma that follow both Material Design 3 and Cupertino guidelines, validated through interactive prototypes and user testing.
4. 03 ### **Flutter Development** Simon builds your app using clean architecture patterns, custom widget libraries, and Firebase integration, with CI/CD pipelines from day one for continuous delivery.
5. 04 ### **Testing & Quality Assurance** Comprehensive testing including unit tests, widget tests, and integration tests using Flutter's built-in testing framework. Simon tests across multiple device sizes and OS versions.
6. 05 ### **App Store Deployment** Simon handles submission to both Apple App Store and Google Play Store from the single Flutter codebase, configure beta testing tracks, and optimize store listings for ASO.
7. 06 ### **Maintenance & Iteration** Ongoing support including Flutter SDK upgrades, dependency updates, performance monitoring via Firebase Crashlytics, bug fixes, and feature iterations based on user analytics.

Showcase

## **Apps built with Flutter**

Flutter isn't a niche choice. Google's own [Flutter showcase](https://flutter.dev/showcase) lists production apps such as:

- **Google Pay**: Google's payments app
- **NotebookLM**: Google's AI research notebook
- **Toyota**: in-vehicle infotainment
- **SoFi**: a finance super app
- **Headspace**: mental health and meditation
- **MGM Resorts**: the guest app
- **LG Electronics**: parts of webOS
- **Universal Studios**: next-generation experiences

Built by Simon

### **Workspace369**

A client-work platform (CRM, proposals, invoicing, payments, scheduling, inbox and AI) built by App369's founder, Simon Dziak. One Flutter codebase with iOS, Android, web and desktop targets; GetX for state and routing; Firebase Auth, Firestore, Storage, Cloud Messaging, Crashlytics and App Check; Stripe for payments. The backend is TypeScript on Cloud Functions (2nd gen), split into 24 separately deployed Firebase codebases.

[See it on the App Store](https://apps.apple.com/us/app/workspace369/id6475013419) (published by Workspace369 LLC) or read the [Workspace369 case study](https://app369.com/case-studies/workspace369/). For more examples, see these [apps built with Flutter](https://app369.com/blog/apps-built-with-flutter-examples-2026/).

Technologies

- Flutter
- Dart
- Firebase
- Google Cloud
- Riverpod
- BLoC
- GetX
- Stripe

Error fixes

## Flutter and Firebase errors Simon fixes

Each page explains the error from the vendors’ own docs, with what to change next.

- [Firebase Remote Config not updating](https://app369.com/fix/firebase-remote-config-not-updating/)
- [Crashlytics not showing crashes](https://app369.com/fix/firebase-crashlytics-not-showing-crashes/)
- [Firebase password reset email not arriving](https://app369.com/fix/firebase-password-reset-email-not-arriving/)
- [Firebase app/duplicate-app](https://app369.com/fix/firebase-app-duplicate-app/)
- [Firebase auth/unauthorized-continue-uri](https://app369.com/fix/firebase-auth-unauthorized-continue-uri/)
- [Firebase auth/web-storage-unsupported](https://app369.com/fix/firebase-auth-web-storage-unsupported/)
- [Firebase auth/second-factor-already-in-use](https://app369.com/fix/firebase-auth-second-factor-already-in-use/)
- [Firebase auth/email-change-needs-verification](https://app369.com/fix/firebase-auth-email-change-needs-verification/)
- [Firebase Hosting Page Not Found](https://app369.com/fix/firebase-hosting-page-not-found/)
- [Cloud Firestore API disabled](https://app369.com/fix/firestore-api-not-used-or-disabled/)
- [Firebase Storage object-not-found](https://app369.com/fix/firebase-storage-object-not-found/)
- [Firebase messaging/permission-blocked](https://app369.com/fix/firebase-messaging-permission-blocked/)
- [Firestore unsupported field value: undefined](https://app369.com/fix/firestore-unsupported-field-value-undefined/)
- [Firestore ALREADY_EXISTS](https://app369.com/fix/firestore-already-exists-document/)
- [Firestore transaction too big](https://app369.com/fix/firestore-transaction-too-big/)
- [Firestore invalid document reference](https://app369.com/fix/firestore-invalid-document-reference/)
- [Firebase storage/retry-limit-exceeded](https://app369.com/fix/firebase-storage-retry-limit-exceeded/)
- [Firestore in query limit (30)](https://app369.com/fix/firestore-in-query-limit-30/)
- [Firebase Functions 403 Forbidden](https://app369.com/fix/firebase-functions-403-forbidden/)
- [Firebase auth/billing-not-enabled](https://app369.com/fix/firebase-auth-billing-not-enabled/)
- [Firestore document too large](https://app369.com/fix/firestore-document-too-large/)
- [Firebase Functions timeout](https://app369.com/fix/firebase-functions-timeout/)
- [Firebase Storage CORS error](https://app369.com/fix/firebase-storage-cors-error/)
- [Firestore ABORTED contention](https://app369.com/fix/firestore-aborted-too-much-contention/)
- [Firebase callable INTERNAL error](https://app369.com/fix/firebase-functions-callable-internal-error/)
- [Firebase Functions secret undefined](https://app369.com/fix/firebase-functions-secret-undefined/)
- [Firebase Storage Blaze plan](https://app369.com/fix/firebase-storage-requires-blaze-plan/)
- [Firebase missing initial state](https://app369.com/fix/firebase-auth-missing-initial-state/)
- [Firestore exclusive access](https://app369.com/fix/firestore-failed-to-obtain-exclusive-access/)
- [Firebase credential-already-in-use](https://app369.com/fix/firebase-auth-credential-already-in-use/)
- [Firebase missing-or-invalid-nonce](https://app369.com/fix/firebase-auth-missing-or-invalid-nonce/)
- [Firebase invalid-verification-code](https://app369.com/fix/firebase-auth-invalid-verification-code/)
- [Firebase user-token-expired](https://app369.com/fix/firebase-auth-user-token-expired/)
- [Firebase storage/no-default-bucket](https://app369.com/fix/firebase-storage-no-default-bucket/)
- [Firebase auth/quota-exceeded](https://app369.com/fix/firebase-auth-quota-exceeded/)
- [Firebase multi-factor-auth-required](https://app369.com/fix/firebase-auth-multi-factor-auth-required/)
- [Firebase auth/user-mismatch](https://app369.com/fix/firebase-auth-user-mismatch/)
- [Firebase auth/cancelled-popup-request](https://app369.com/fix/firebase-auth-cancelled-popup-request/)
- [Firebase auth/invalid-user-token](https://app369.com/fix/firebase-auth-invalid-user-token/)
- [Firebase auth/popup-closed-by-user](https://app369.com/fix/firebase-auth-popup-closed-by-user/)
- [Firebase auth/internal-error](https://app369.com/fix/firebase-auth-internal-error/)
- [Firebase Dynamic Links shutdown](https://app369.com/fix/firebase-dynamic-links-shutdown/)
- [Flutter “type 'Null' is not a subtype of type 'String'”](https://app369.com/fix/flutter-type-null-is-not-a-subtype-of-type-string/)
- [Flutter LateInitializationError](https://app369.com/fix/flutter-lateinitializationerror-field-has-not-been-initialized/)
- [Flutter “Looking up a deactivated widget’s ancestor is unsafe”](https://app369.com/fix/flutter-looking-up-a-deactivated-widgets-ancestor-is-unsafe/)
- [Dart “Bad state: No element”](https://app369.com/fix/flutter-bad-state-no-element/)
- [Flutter web “XMLHttpRequest error”](https://app369.com/fix/flutter-web-xmlhttprequest-error/)
- [Flutter “version solving failed”](https://app369.com/fix/flutter-pub-version-solving-failed/)
- [Flutter “Unable to load asset”](https://app369.com/fix/flutter-unable-to-load-asset/)
- [Flutter “Incorrect use of ParentDataWidget”](https://app369.com/fix/flutter-incorrect-use-of-parentdatawidget/)
- [Flutter PlatformException](https://app369.com/fix/flutter-platformexception/)
- [Firestore DEADLINE_EXCEEDED](https://app369.com/fix/firestore-deadline-exceeded/)
- [Flutter HandshakeException CERTIFICATE_VERIFY_FAILED](https://app369.com/fix/flutter-handshakeexception-certificate-verify-failed/)
- [Flutter “setState() called after dispose()”](https://app369.com/fix/flutter-setstate-called-after-dispose/)
- [Flutter “cmdline-tools component is missing”](https://app369.com/fix/flutter-cmdline-tools-component-is-missing/)
- [flutter: command not found](https://app369.com/fix/flutter-command-not-found/)
- [Plugin “com.google.gms.google-services” not found](https://app369.com/fix/firebase-google-services-plugin-not-found/)
- [Flutter “SocketException: Failed host lookup”](https://app369.com/fix/flutter-socketexception-failed-host-lookup/)
- [Flutter “Flutter/Flutter.h file not found”](https://app369.com/fix/flutter-flutter-h-file-not-found/)
- [Flutter “Navigator operation requested with a context”](https://app369.com/fix/flutter-navigator-operation-requested-with-a-context/)
- [Flutter “Scaffold.of() called with a context”](https://app369.com/fix/flutter-scaffold-of-called-with-a-context/)
- [Flutter “Target of URI doesn’t exist”](https://app369.com/fix/flutter-target-of-uri-doesnt-exist/)
- [“flutterfire: command not found”](https://app369.com/fix/firebase-flutterfire-command-not-found/)
- [Swift pods “cannot yet be integrated as static libraries”](https://app369.com/fix/flutter-swift-pods-cannot-be-integrated-as-static-libraries/)
- [Crashlytics “Missing dSYM”](https://app369.com/fix/firebase-crashlytics-missing-dsym/)
- [“firebase: command not found”](https://app369.com/fix/firebase-command-not-found/)
- [Execution failed for task ‘:app:mapDebugSourceSetPaths’](https://app369.com/fix/firebase-mapdebugsourcesetpaths-failed/)
- [Flutter “Binding has not yet been initialized”](https://app369.com/fix/flutter-binding-has-not-yet-been-initialized/)
- [Flutter “_Map<String, dynamic> is not a subtype of List”](https://app369.com/fix/flutter-internallinkedhashmap-is-not-a-subtype-of-type-list/)
- [Flutter “SocketException: Connection refused”](https://app369.com/fix/flutter-socketexception-connection-refused/)
- [Flutter “RangeError (index): Invalid value: Not in range”](https://app369.com/fix/flutter-rangeerror-index-invalid-value-not-in-range/)
- [Flutter “Execution failed for task ‘:app:compileFlutterBuildDebug’”](https://app369.com/fix/flutter-execution-failed-for-task-compileflutterbuilddebug/)
- [Flutter Navigator “!_debugLocked is not true”](https://app369.com/fix/flutter-navigator-debuglocked-is-not-true/)
- [Flutter “Connection closed before full header was received”](https://app369.com/fix/flutter-httpexception-connection-closed-before-full-header/)
- [Flutter “Could not find included file ‘Generated.xcconfig’”](https://app369.com/fix/flutter-generated-xcconfig-not-found/)
- [Firebase “Member not found: FirebaseAppPlatform.verifyExtends”](https://app369.com/fix/firebase-member-not-found-verifyextends/)
- [FlutterFire “FirebaseCommandException”](https://app369.com/fix/firebase-flutterfire-configure-firebasecommandexception/)
- [Android google-services “version conflict”](https://app369.com/fix/firebase-google-services-version-conflict/)
- [Flutter “No MediaQuery widget ancestor found”](https://app369.com/fix/flutter-no-mediaquery-widget-found/)
- [Flutter “The instance member can’t be accessed in an initializer”](https://app369.com/fix/flutter-instance-member-cant-be-accessed-in-an-initializer/)
- [Flutter “The parameter can’t have a value of null because of its type”](https://app369.com/fix/flutter-parameter-cant-have-a-value-of-null/)
- [Flutter “Invalid constant value”](https://app369.com/fix/flutter-invalid-constant-value/)
- [Flutter “Gradle build failed to produce an .apk file”](https://app369.com/fix/flutter-gradle-build-failed-to-produce-an-apk-file/)
- [Flutter “Unimplemented handling of missing static target”](https://app369.com/fix/flutter-unimplemented-handling-of-missing-static-target/)
- [Flutter “The argument type ‘String’ can’t be assigned to the parameter type ‘Uri’”](https://app369.com/fix/flutter-string-cant-be-assigned-to-uri/)
- [Firebase “FIS_AUTH_ERROR”](https://app369.com/fix/firebase-fis-auth-error/)
- [Flutter “can’t be assigned to the parameter type ‘PreferredSizeWidget’”](https://app369.com/fix/flutter-cant-be-assigned-to-preferredsizewidget/)
- [Flutter “type ‘List<dynamic>’ is not a subtype of type ‘List<int>’”](https://app369.com/fix/flutter-list-dynamic-is-not-a-subtype-of-list-int/)
- [Flutter “Error: Member not found: ‘packageRoot’”](https://app369.com/fix/flutter-member-not-found-packageroot/)
- [Firebase auth/email-already-in-use](https://app369.com/fix/firebase-auth-email-already-in-use/)
- [Firebase auth/account-exists-with-different-credential](https://app369.com/fix/firebase-auth-account-exists-with-different-credential/)
- [Firebase auth/admin-restricted-operation](https://app369.com/fix/firebase-auth-admin-restricted-operation/)
- [Firebase auth/weak-password](https://app369.com/fix/firebase-auth-weak-password/)
- [Firebase auth/invalid-email](https://app369.com/fix/firebase-auth-invalid-email/)
- [Firebase auth/invalid-action-code](https://app369.com/fix/firebase-auth-invalid-action-code/)
- [Firebase auth/id-token-expired](https://app369.com/fix/firebase-auth-id-token-expired/)
- [Firebase auth/user-disabled](https://app369.com/fix/firebase-auth-user-disabled/)
- [Firebase auth/invalid-phone-number](https://app369.com/fix/firebase-auth-invalid-phone-number/)
- [Firebase auth/provider-already-linked](https://app369.com/fix/firebase-auth-provider-already-linked/)
- [Flutter requires a newer Kotlin Gradle plugin](https://app369.com/fix/flutter-kotlin-gradle-plugin-version/)
- [Flutter “A RenderFlex overflowed”](https://app369.com/fix/flutter-renderflex-overflowed/)
- [Flutter “setState() called during build”](https://app369.com/fix/flutter-setstate-called-during-build/)
- [Flutter “RenderBox was not laid out”](https://app369.com/fix/flutter-renderbox-was-not-laid-out/)
- [Flutter “Null check operator used on a null value”](https://app369.com/fix/flutter-null-check-operator-used-on-a-null-value/)
- [Firebase bill spike](https://app369.com/fix/firebase-bill-spike/)
- [Firebase auth/invalid-api-key in production](https://app369.com/fix/firebase-auth-invalid-api-key-production/)
- [Firebase phone auth invalid-app-credential](https://app369.com/fix/firebase-phone-auth-invalid-app-credential/)
- [Firebase auth/network-request-failed](https://app369.com/fix/firebase-auth-network-request-failed/)
- [Firestore client is offline](https://app369.com/fix/firestore-client-is-offline/)
- [Flutter MissingPluginException](https://app369.com/fix/flutter-missingpluginexception/)
- [Flutter Gradle assembleDebug failed](https://app369.com/fix/flutter-gradle-assembledebug-failed/)
- [Firebase auth/operation-not-allowed](https://app369.com/fix/firebase-auth-operation-not-allowed/)
- [Unexpected Gemini API charges on Firebase](https://app369.com/fix/firebase-unexpected-gemini-api-charges/)
- [Firestore quota exceeded](https://app369.com/fix/firestore-quota-exceeded/)
- [Firebase auth/invalid-credential](https://app369.com/fix/firebase-auth-invalid-credential/)
- [Google Sign-In fails on Android (error 10)](https://app369.com/fix/firebase-google-sign-in-android-developer-error/)
- [Firebase Functions CORS error](https://app369.com/fix/firebase-functions-cors-error/)
- [Firebase Functions deploy failed](https://app369.com/fix/firebase-functions-deploy-failed/)
- [Firebase Functions out of memory](https://app369.com/fix/firebase-functions-memory-limit-exceeded/)
- [Firebase App Check blocking requests](https://app369.com/fix/firebase-app-check-blocking-requests/)
- [Flutter pod install failed](https://app369.com/fix/flutter-pod-install-failed/)
- [Flutter APNS token not set](https://app369.com/fix/flutter-apns-token-not-set/)
- [Flutter “Unsupported class file major version”](https://app369.com/fix/flutter-unsupported-class-file-major-version/)
- [Firebase auth/requires-recent-login](https://app369.com/fix/firebase-auth-requires-recent-login/)
- [Firebase storage/unauthorized](https://app369.com/fix/firebase-storage-unauthorized/)
- [Firebase auth/too-many-requests](https://app369.com/fix/firebase-auth-too-many-requests/)
- [Firebase auth/popup-blocked](https://app369.com/fix/firebase-google-sign-in-popup-blocked/)
- [Firebase No Firebase App \[DEFAULT\]](https://app369.com/fix/firebase-no-app-default-has-been-created/)
- [Firebase insecure rules alert](https://app369.com/fix/firebase-insecure-rules-alert/)
- [Firestore query requires an index](https://app369.com/fix/firestore-query-requires-an-index/)
- [Firebase auth/unauthorized-domain](https://app369.com/fix/firebase-auth-unauthorized-domain/)
- [Firebase missing permissions](https://app369.com/fix/firebase-missing-or-insufficient-permissions/)

Questions

## **Frequently asked questions**

### **How much does a Flutter app cost?**

It depends on scope: the number of screens, integrations, admin tools and how much backend work sits behind the app. The free app cost calculator turns those choices into a range with every assumption listed, and the fee structure page shows how projects are priced. One Flutter codebase usually costs less than two separate native apps because the UI and business logic are written once, though platform-specific work such as payments, push notifications and store setup is still done per platform.

### **Can I hire a Flutter developer in Miami?**

Yes. App369 is a founder-led Flutter studio in Miami, Florida, working with clients in South Florida and across the US. You hire Simon for a defined scope rather than by the hour: a written scoping (from $450), then a fixed quote. As a rough estimate, not a quote, version one of an iOS and Android app from one Flutter codebase runs $9,000 to $14,000 before extra features and design. If you already have a Flutter app and need one bug fixed, the App Fix Ticket covers that at a fixed price.

### **Flutter vs React Native: which is better?**

Both are solid. In the 2024 Stack Overflow Developer Survey, 9.4% of all respondents used Flutter and 8.4% used React Native. Flutter draws its own UI with its Impeller renderer and is written in Dart; React Native renders platform-native components and is written in JavaScript or TypeScript, which suits teams that already work in React. Simon builds in Flutter because one codebase covers mobile, web and desktop with the same UI. The Flutter vs React Native comparison goes deeper.

### **How long does it take to build a Flutter app?**

It depends on scope. A focused MVP is measured in weeks to a few months; a full product with payments, admin tools and integrations takes longer. After the brief, Simon sends a milestone plan with dates, and the MVP development page explains how scope gets cut to ship sooner.

### **Is Flutter suitable for enterprise applications?**

Yes. The official Flutter showcase includes Google apps such as Google Pay and NotebookLM, Toyota's infotainment work, SoFi, MGM Resorts and LG's webOS. What makes a Flutter app enterprise-ready is the engineering around it: authentication, offline handling, automated tests, CI/CD and monitoring, which Simon sets up from the first sprint.

### **Does Flutter support web and desktop apps?**

Yes. Flutter's documentation lists Android, iOS, web, Windows, macOS and Linux as supported deployment platforms. Workspace369, which Simon built, keeps all of these targets in one Flutter project.

### **Can Flutter apps access native device features?**

Yes. Flutter talks to native iOS (Swift or Objective-C) and Android (Kotlin or Java) code through platform channels, and pub.dev has packages for the camera, location, Bluetooth, biometrics, push notifications, NFC and more. When no package fits, Simon writes a small platform-channel plugin that calls the native API directly.

## **Prefer a fixed price?**

Fixed scope, fixed price, paid upfront. The work happens in writing; no call needed.

- [**App Fix Ticket**from $450One reproducible bug in an existing mobile or web app, diagnosed and fixed.](https://app369.com/fixed-price/flutter-firebase-bug-fix/)
- [**Firebase Security Rules Audit + Fix PR**$950Tests whether one user can read or edit another customer’s data, and fixes what it finds.](https://app369.com/fixed-price/firebase-security-rules-audit/)
- [**Firebase Cost-Cut Audit**$750Where your Firebase or Google Cloud bill goes, with savings ranked by dollars a month and risk.](https://app369.com/fixed-price/firebase-cost-audit/)

## **Data and research**

- [**Flutter Adoption Statistics 2026**](https://app369.com/statistics/flutter-adoption-statistics-2026/) Survey usage against React Native, Dart usage, GitHub stars and supported platforms.

Start here

## **Build Once, Deploy Everywhere**

Flutter runs apps from Google, Toyota and LG, and it runs Simon’s own product. Whether you need a [startup MVP](https://app369.com/service/mvp-development/) or a full-scale [mobile application](https://app369.com/service/mobile-apps/), try the free [app cost calculator](https://app369.com/tools/app-cost-calculator/), get a detailed estimate by email, usually within one business day, or book a consultation ($100 per 15 minutes, paid upfront).

[**Get in touch **→](https://app369.com/contact/) [**View pricing**](https://app369.com/fee-structure/)

Fiverr reviews / 95 on app work

## **What buyers said about this kind of work**

[**Read 126 of the 127 reviews **](https://app369.com/reviews/)

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### **Read the whole story**

- [Sixteen five-star reviews from one buyer: mobile apps, app design and a Shopify store](https://app369.com/case-studies/fiverr/mobile-apps-and-a-shopify-store-for-one-buyer/) (Mark, United States)
- [A large custom app build, delivered on the back end and the front end](https://app369.com/case-studies/fiverr/large-custom-app-build/) (A buyer in the United States)