Custom Flutter app development for iOS, Android & Web.
We build high-performance Flutter apps from a single codebase — for startups, SaaS founders, and construction tech companies that need to ship fast without doubling their budget.

The short answer
Flutter is Google’s open-source UI toolkit for building natively compiled apps from a single codebase. Unlike React Native—which bridges JavaScript to native components—Flutter compiles directly to native ARM code and renders every pixel using its own Impeller 2.0 engine. The result is 60–120fps performance, pixel-perfect UI fidelity across platforms, and zero rendering surprises.
Bolder has been building production Flutter apps since 2019. We use it for cross-platform mobile apps, SaaS dashboards, construction field tools, and on-demand marketplaces—anywhere you need consistent UI and performance across iOS, Android, and web without maintaining three separate codebases.
The conversations that bring Flutter projects to Bolder.
Real scenarios that bring Flutter projects to Bolder. If one of these sounds familiar, we’ve solved it before.
Cross-platform mobile apps
One Flutter codebase ships to iOS, Android, and web simultaneously. No parity drift between stores, no duplicate codebases to maintain, no separate QA cycles per platform.
Construction field apps
Custom ACC, Procore, and Buildertrend companion apps that sync job cost data, RFIs, and daily reports in real time. Built for field crews on-site, offline-first.
On-demand marketplace apps
Rider/driver flows, real-time maps, Stripe Connect payouts, and multi-role architecture. Flutter handles the animation complexity that makes on-demand feel premium.
SaaS dashboards & portals
Web and mobile Flutter apps for internal tools, client portals, and data-heavy dashboards with consistent UI across every device and screen size.
Health & wellness platforms
Healthcare and wellness apps with HIPAA-compliant architecture, biometric authentication, HealthKit and Google Fit integrations, and 60fps charting interfaces.
Premium UI-first consumer apps
Flutter's Impeller 2.0 render engine makes it the only cross-platform choice for apps where micro-interactions, custom animations, and brand UI fidelity are non-negotiable.
Flutter expertise that goes beyond the surface.
We don’t just know the Flutter API. We understand the architecture decisions that make Flutter apps scale, and the performance patterns that separate good apps from great ones.
Custom UI & Animation Systems
We build bespoke widget systems and animation pipelines using Impeller 2.0. No off-the-shelf component libraries — everything matches your brand and performs at 60–120fps.
True Cross-Platform Architecture
One Dart codebase compiles to iOS, Android, and web. No React Native bridge, no WebView wrappers — native ARM code with platform-specific UI adaptations where needed.
CI/CD & App Store Pipeline
Weekly TestFlight and staging builds from day one. Fastlane automates signing, versioning, and submission. App Store and Play Store submission is handled by Bolder — it's in scope.
Scalable State Management
BLoC pattern with clean architecture separates UI, business logic, and data layers. Scales from MVP to enterprise without rewrites. Every feature is independently testable.
Your next app shouldn't take 6 months

When Flutter is the right call.
Not every project needs Flutter. Here’s when it’s clearly the right call — and how it stacks up against the alternatives.
Pixel-perfect UI, in your brand language.
Bespoke widgets and animation pipelines powered by Impeller 2.0. No off-the-shelf component libraries — everything matches your brand and performs at 60–120fps.
.webp)
One codebase. Three platforms.
iOS, Android, and web from a single Dart codebase. One release cycle, one QA process, no parity drift between stores.
.webp)
Kickoff to App Store in 8–18 weeks.
Fixed scope, weekly TestFlight builds, App Store submission handled by Bolder. Kickoff to live app in 8–18 weeks.
.webp)
BLoC pattern with clean architecture. Scales from MVP to enterprise without a rewrite.
BLoC pattern with clean architecture. Scales from MVP to enterprise without a rewrite.
Flutter
React Native
Native
Flutter
React Native
Native
Industries we’ve shipped Flutter apps for.
Flutter’s performance and UI flexibility makes it the right call across industries where the app experience is the product.
The stack Flutter works best with.
Firebase
Auth, Realtime Database, Cloud Functions, and Firestore — the default Flutter backend stack.
Node.js
Custom REST and GraphQL APIs powering complex Flutter app backends.
Stripe
In-app payments, subscriptions, and Stripe Connect marketplace payouts.
AWS
Scalable cloud infrastructure, S3 for media, Lambda for serverless functions.
Supabase
Open-source Firebase alternative. Postgres database with Flutter SDK support.
Google Maps API
Location-aware Flutter apps with real-time tracking, routing, and geofencing.
OpenAI API
AI-powered Flutter features — chatbots, content generation, and smart workflows.
Auth0 / Clerk
Enterprise-grade auth for Flutter apps — SSO, MFA, and social login.
Bold Answers to Bolder Questions
Can't find what you're looking for? Get in touch with our team.
Let's discuss your goals
What happens next?





Bolder Starts Here





