# Flutter Apps Built for Production. Flutter App Development at Workflow Apps. We build iOS and Android apps from a single Flutter codebase: field tools, customer portals, and SaaS companions that hold up in real conditions, not just in a demo. [Start a Project](/start/?interest=ai-accelerated-development) ## Why Flutter. **One Codebase.** Flutter compiles one Dart codebase to native iOS and Android apps, with the web as an option. You maintain one app instead of two, features ship to both platforms at once, and the UI renders the same everywhere. **Native Performance.** Flutter draws its own UI and compiles ahead of time, so scrolling, animation, and heavy forms stay smooth on mid-range devices. That matters for field teams who aren't carrying the newest phone. **How We Build It.** Typed state management, declarative routing, and a clear separation between UI, domain logic, and data access. Tests and CI from the first sprint, and releases through TestFlight and Play Console tracks rather than files passed around by email. ## What We Build With Flutter. ### Cross-Platform Mobile Apps Customer-facing and internal apps for iOS and Android from one Flutter codebase. From the data model and API contract through the app store listing. We design for the devices your users actually carry and the connectivity they actually have. - Native iOS and Android builds from one codebase - Authentication, roles, and account management - Push notifications, deep links, and in-app updates ### Field & Inspection Apps Apps for crews working on site: inspections, estimates, photos, and signatures. Field work means patchy signal, gloves, and glare. We build offline-first data capture that syncs when a connection returns, with camera, location, and document generation built in. - Offline-first capture with background sync - Photo, GPS, and signature capture - PDF reports and estimates generated on the device or server ### FlutterFlow to Flutter Rebuilds Outgrew a FlutterFlow or low-code prototype? We rebuild it as maintainable Flutter code. Low-code tools are a fast way to prove an idea and a hard place to scale one. We keep what works about the product, rebuild the codebase with proper state management and tests, and migrate your users and data. - Audit of the existing app and its data - Hand-written Flutter with tests and CI - User and data migration without a cold start ### SaaS Companion Apps Mobile apps that pair with a web platform: shared backend, shared accounts, one data model. When your product has a web dashboard and a mobile app, they should agree on everything. We build both against the same backend so permissions, billing, and data stay in sync. - Shared backend with your web app (Supabase, Firebase, or custom APIs) - Multi-tenant accounts and role-based access - Feature parity planning across web and mobile ### Takeovers & Modernization An existing Flutter app that needs a team: upgrades, performance work, and a release process. We audit the codebase, upgrade the Flutter and package versions, fix what's fragile, and set up the build and release pipeline so updates stop being an event. - Codebase and dependency audit - Flutter, Dart, and package upgrades - CI builds and store release automation ## When Flutter Is the Right Call **A strong fit when:** - You need iOS and Android, and maintaining two native codebases isn't worth it - Your users work in the field or on older devices and need a fast, reliable app - You have a web platform and want a mobile app that shares its backend - You've outgrown a FlutterFlow or no-code prototype **Worth a second look when:** - Apps built around deep, platform-specific features (advanced AR, some watch and car integrations) may be better served natively - If the 'app' is mostly content and forms, a well-built responsive web app can be cheaper to run ## What We Pair With Flutter - **App:** Flutter, Dart, Riverpod, go_router - **Backend:** Firebase, Supabase, PostgreSQL, Cloud Functions - **Delivery:** GitHub Actions, TestFlight, Google Play Console ## Related Work - [Septic360](/case-studies/septic360/): Multi-tenant SaaS platform with Flutter mobile app, Nuxt admin panel, and Supabase backend for septic inspection management. - [SAA Method](/case-studies/saa-method/): Mobile-first product engagement built end-to-end with Flutter. ## How an Engagement Runs 1. **Scope (Week 1):** Audit what exists and define what needs to be built. 2. **Architect (Week 2):** Architecture, stack decisions, and a delivery roadmap. 3. **Build (Weeks 3–8):** AI-accelerated development with something to review every week. 4. **Ship & Support (Week 8+):** Deployment, documentation, and handoff. See [the full process](/process/). ## FAQ ### How long does it take to build a Flutter app? Most first releases follow our standard process: scoping in week one, architecture in week two, and production builds with something to review every week through weeks three to eight. Larger platforms are phased so a usable version ships first. ### Do you build for both iOS and Android? Yes. That's the main reason to choose Flutter. One codebase produces both apps, and we handle the App Store and Google Play submissions. ### Can you take over a Flutter app another team built? Yes. We start with an audit of the code, dependencies, and release setup, then give you a prioritized list of what to fix before adding features. ### We built our app in FlutterFlow. Can you move it to regular Flutter? Yes. We rebuild it as hand-written Flutter with proper state management and tests, keep the product behavior your users know, and migrate accounts and data. ### Do our apps work offline? They can. For field and inspection apps we design offline-first: data is captured on the device and synced when a connection is available, with conflict handling built in. ### Where are you located? Malvern, PA, near Philadelphia. We work with organizations across the U.S., and most engagements run remotely with weekly reviews. ## Have an App to Build? Tell us who it's for and what it needs to do. You'll hear back within one business day with a yes, a scope estimate, or a better question. [Start a Project](/start/?interest=ai-accelerated-development)