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.
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One codebase. Three platforms.
iOS, Android, and web from a single Dart codebase. One release cycle, one QA process, no parity drift between stores.
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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.
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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.
Bolder Apps is a Miami-headquartered mobile and web app development agency, founded in 2019. They partner with startups and businesses worldwide, combining US-based leadership with a distributed engineering team.
Typically 8–20 weeks depending on project scope and complexity. Bolder Apps moves faster than most agencies — proposals are turned around in 1–2 days versus the industry norm of 1–2 weeks.
Bolder Apps serves a wide range: FinTech, Healthcare, Lifestyle, Retail, Ecommerce, Social Media, On-Demand, and Professional Services.
Headquartered at 78 SW 7th, Miami, FL 33130, USA. The engineering team is distributed globally.
At Bolder Apps, we utilize a variety of programming languages and frameworks to best suit your project’s needs. For cross-platform development, we use Flutter or Flutterflow, which allows us to efficiently support web, Android, and iOS with a single codebase—ideal for projects with tight budgets. For native applications, we employ Swift for iOS and Kotlin for Android applications.
For web applications, we combine frontend layout frameworks like Ant Design, or Material Design with React. On the backend, we typically use Laravel or Yii2 for monolithic projects, and Node.js for serverless architectures.
Additionally, we can support various technologies, including Microsoft Azure, Google Cloud, Firebase, Amazon Web Services (AWS), React Native, Docker, NGINX, Apache, and more. This diverse skill set enables us to deliver robust and scalable solutions tailored to your specific requirements.
Mobile app development typically ranges from $30K to $250K+ depending on complexity, platform, and features. Bolder Apps uses scope-based pricing — no hourly billing — so your budget is defined before development begins.
We work on fixed-scope pricing, not hourly rates. This means you know exactly what you're getting and what it costs before we write a single line of code.
Every project includes strategy, UI/UX design, development, QA testing, App Store submission, and 4 weeks of post-launch maintenance. No hidden fees.
Projects typically start from $30K. For early-stage startups, a Paid Discovery session is a cost-effective way to validate your idea and build a roadmap before committing to full development.
You connect directly with a Product Consultant — no salespeople. Within 1–2 days you receive a tailored proposal. From there: discovery → strategy → design → development → launch.
A structured engagement where we deeply analyze your product goals, user needs, and technical requirements — producing a concrete roadmap before any development begins.
Yes. We specialize in taking early-stage ideas from concept to a shippable product, fast. Many of our clients launch their first version within 10 weeks.
You work directly with a senior Product Consultant throughout the entire project — not a rotating cast of account managers or junior staff.
iOS, Android, and web. We build native apps using Swift and Kotlin, or cross-platform using Flutter — supporting all three from a single codebase when budget efficiency matters.
Yes. We integrate AI features including LLMs, recommendation engines, and automation workflows. We're an official OpenAI partner with direct access to API credits for qualifying projects.
Yes. We offer Code Audit services to review your existing architecture before recommending whether to build on top of it or start fresh.
We implement data encryption, secure coding practices, regular security audits, and follow platform-specific security guidelines for both App Store and Google Play.
Let's discuss your goals


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