Launch your product, connect your business, or move an existing app forward. We build Flutter apps for iOS, Android and web with the architecture and care a production release needs.
From the first scope to release and source code handover.
Nautilus Techlabs builds Flutter applications for iOS, Android and the web from a shared Dart codebase. We take products from requirements and interface design through backend integration, testing and release, and help teams improve existing Flutter apps.
For startups, that can mean a focused first release. For an established business, it can mean a booking platform, an operational app or a connected-device experience. For a product team, it can mean improving the app you already have.
Choose the capabilities your product needs. We agree the deliverables and acceptance criteria before development begins.
Build the customer experience around your product: onboarding, accounts, bookings, subscriptions and everyday workflows. Share application logic while adapting navigation, permissions and layouts to each platform.
Define the smallest useful release around a real user journey. Separate UI, application logic and data access so the next release can build on a maintainable foundation.
Bring your existing native iOS and Android apps into a shared Flutter codebase. We review your Swift, Objective-C, Kotlin or Java apps, assess feature parity and recommend a phased migration or a full rebuild around your release needs.
Connect your app to Supabase, Firebase or an existing API. Keep privileged operations on the server and enforce access rules beyond the interface.
Plan what remains available without a connection, how changes sync and what happens when requests fail. Validate device features against the hardware and operating systems you need to support.
Test business rules, important screens and complete user journeys. Review performance on target devices and prepare builds for the stores your product uses.
Start with a review of your existing Flutter app, then prioritize the changes that unblock releases or reduce maintenance effort. Agree ongoing support separately around your product needs.
Shared code can simplify development across platforms. The right choice still depends on your users, integrations and release requirements.
Flutter is a strong candidate when iOS and Android users need the same core experience, or when your team also needs an app-like web interface.
Hardware SDKs, background execution, browser support and demanding native features need investigation. Shared code does not remove platform-specific testing or integration work.
For public, text-heavy websites where search discovery is central, an HTML-based website is usually a better fit alongside your Flutter app.
You see working software and make decisions throughout delivery. AI can assist implementation; our engineers remain responsible for architecture, review and testing.
Review your users, core workflows, designs and integrations. Identify platform constraints and agree the first release, assumptions and acceptance criteria.
Implement reusable interfaces, application logic and backend connections in reviewable increments. Demonstrate progress and resolve product decisions as the app takes shape.
Exercise critical journeys, offline behavior and permissions on agreed devices. Check release configuration and address issues before store submission.
Support submission through your developer accounts, document the project and review crash reports after release. Plan future improvements and any ongoing support.
Read how we approached offline workflows, permissions and human review in shipped Flutter products. Client identities are withheld; the case studies explain the work.
A multi-location salon group needed appointments, checkout and reporting in one app. We built role-based workflows with permissions enforced in the data layer and local data handling for interrupted connections.
Read the salon POS case study
A coaching institute needed timed tests, mentor evaluation and paid courses. We built student, mentor and admin workflows with BLoC, Supabase and Hive to preserve test progress offline.
Read the education case studyCost and timing follow the work involved. We review your brief before recommending a budget, milestones and an engagement model.
Get a Scope & EstimateChoose a fixed-scope project, dedicated engineering or a product team based on what you need. Compare ways to work with us.
Flutter app development uses Google’s Flutter framework and the Dart language to build applications from a shared codebase. For our clients, the service covers product scoping, interface implementation, backend integration, testing and release for agreed iOS, Android and web targets.
Yes. Flutter can share application logic and much of the interface across those platforms. Each target still needs appropriate layouts, supported integrations and testing. Native capabilities, browser restrictions and store requirements can add platform-specific work.
We estimate after reviewing your core workflows, designs, platforms, integrations and release requirements. A focused MVP and a product with offline sync, payments or connected hardware have different scopes. Share your brief and we will outline deliverables, assumptions and an estimate. Hosting, paid APIs and store account costs should be budgeted separately.
The timeline depends on feature scope, design readiness, backend availability and technical risk. We agree milestones after discovery and can prioritize a smaller first release. Store review and external approvals also affect launch timing; we do not promise a fixed timeline before reviewing the requirements.
Yes. We review the repository, dependencies, architecture, tests and release setup before proposing changes. Work can include Flutter upgrades, Riverpod or BLoC refactoring, performance improvements, bug fixes and new features. The review helps decide what to keep and what needs attention.
Yes. We can release the Flutter version as an update to your existing app, so users do not need a separate download or new account. We verify app identifiers and signing, then plan and test continuity for accounts, subscriptions and saved data. Any sign-in or device-support changes are identified before rollout.
Explore our native app to Flutter migration serviceYes, when offline behavior is designed into the product. We define which data is stored locally, which actions can be queued and how changes reconcile when connectivity returns. Features that depend on a live server, such as confirming a payment, still need a connection.
You own 100% of the project source code and intellectual property. Our approach includes access to the repository, documentation and deliverables. Releases use your developer accounts, with a handover that explains how to build and maintain the application.
Yes. We help prepare signed builds, release configuration and submission materials for the agreed platforms. You provide the developer accounts, business information and required policy content. Store approval is controlled by Apple and Google and cannot be guaranteed.
Yes. We can extend your product team with Flutter engineering, fix issues, update dependencies and build the next set of features. The engagement model, support coverage and priorities are agreed for your project rather than assumed to be included indefinitely.
Send us your idea, designs or existing app. We’ll help define the technical approach and the next useful step.
