Tangensys • Plan, deliver, measure
Flutter app development
Share the codebase where it makes sense while checking how the app behaves on each platform. One codebase still requires Android and iOS testing.
The work to plan together
A scope shaped around this requirement.
- Flutter buildScope
- Back-end integrationReview
- Store releasesCheck
- ScopeFeatures, users and platforms agreed
- PrototypeKey screens reviewed before build
- Build and testMilestones tested on real devices
- Release and handoverStore release, code and documentation
In short
What does Flutter app development involve?
Flutter app development builds Android and iOS apps from one codebase.
When Flutter app development is a useful fit
Startups
Validate an essential first release before extending the product roadmap.
Businesses needing both platforms
Check shared-code benefits against native device features, testing and maintenance needs.
Problems worth addressing first
Use these situations to identify the work that deserves attention before expanding the scope.
- Two separate apps cost too much
A practical example
A customer portal can share most screens while notifications, payments and permission prompts are checked separately for each platform.
This is an illustrative scenario to explain the approach, not a claimed client project.
The work we can include
The final quote identifies the deliverables, quantities, approvals and exclusions. Select the work that serves your goal rather than assuming every item is required.
- Flutter build
- Back-end integration
- Store releases
Where we usually begin
Native integrations, third-party packages, backend APIs and store requirements affect scope. Cross-platform does not mean every feature is identical everywhere.
Practical detail
Share the flow, verify each platform
An illustrative booking app uses a shared interface on Android and iOS. Common code does not remove the need to test platform-specific integrations.
| Part of the work | Example output | How to review it |
|---|---|---|
| Shared task | Choose a service and request a booking | The same business rules apply across the approved platforms. |
| Notifications | Permission, delivery and opening the relevant screen | Each platform is tested using its actual supported setup. |
| Device integration | Camera, location or payment where scoped | Denied permission and interrupted actions receive useful states. |
| Release matrix | Platform build, backend, store assets and test record | The handover identifies native dependencies and separate release requirements. |
Some device features require native configuration or platform-specific work. Scope those dependencies before estimating the benefit of shared development.
Share implementation where the platform journeys permit it
Flutter can support a shared application codebase, but the product still needs decisions about each target platform. Permissions, notifications and device integrations may differ. Start with the common journey and identify exceptions rather than assuming every screen behaves identically.
Review required packages and backend services against the actual task. A simple content app and a field-work app needing offline records have different complexity. Document the conflict and sync rules before implementing offline features.
Test on the supported platforms, not only one simulator. Keep build, release and maintenance responsibilities clear. Shared code can reduce duplication in some work, but it does not eliminate platform testing or ongoing dependency management.
Free app consultation
Start with a clear scope and a practical next step.
Tell us what you want to improve and share the relevant website or project details. We will review the starting point, recommend a suitable scope and provide a custom quote.
The initial review is free. Delivery, third-party charges and ongoing support are quoted separately.
Process
How the work is delivered
Review the starting point
Review the current setup, examples of the problem and the information needed to agree the work.
Agree scope and sign-off
We agree the users, essential journeys and supported devices before selecting a native or cross-platform approach. A prototype helps confirm the scope before the build.
Deliver and review
The release plan covers realistic-device checks, backend dependencies and store preparation. Platform approvals are outside our control; maintenance and future features are separately scoped.
Hand over the next steps
Review the agreed outputs together. Confirm what your team maintains and what needs a separate ongoing arrangement.
What progress should mean
Measures that match the work
Track sign-off of core journeys, platform-specific defects and release stability. Handover includes build instructions and dependency information.
A record of delivery
See what was completed, reviewed and still dependent on access or approvals. Project delivery and business results are reported separately.
Clear limits in the data
We explain what can be verified and where a result is only an estimate. Contact clicks, conversations and sales are different actions.
Scope and responsibilities
You keep ownership of your business accounts and approved deliverables under the agreed contract. Any third-party licences, subscriptions or usage fees are identified before you commit.
Does a shared codebase mean one test is enough?
No. The common journey and platform-specific behaviour both need review. Agree the supported devices, operating versions and important edge cases. The scope should state those checks so shared development does not obscure separate release responsibilities.
Will every feature be identical on Android and iOS?
The intended experience can be consistent, but platform capabilities and permissions differ. The sign-off matrix records those differences.
Can Flutter remove all native maintenance?
No. Plugins, build tools and device integrations still need maintenance and platform checks under an agreed support scope.
Is Flutter fast enough?
For most business apps, yes.
How is Flutter app development priced?
We quote against your goals, current setup and agreed scope. The quote separates delivery from third-party costs and ongoing support. You receive a custom quote within 2 working days.
How long does the work take?
The timeline follows the size of the agreed scope, access, content and approvals. We confirm milestones in the quote; a simple change and a full implementation need different schedules.
How will we communicate?
Your point of contact agrees a review rhythm with you. We use email, WhatsApp and scheduled calls, with decisions and scope changes recorded clearly.
What do you need to get started?
Share your current website or system, your main goal and examples of what is not working. We then agree the access and information needed for discovery.
Is everything included in the free review?
No. The free initial review helps define the next step. Detailed research, design, implementation and ongoing support are included only when stated in your quote.
Explore the related services
Let’s agree the right next step.
Tell us your goals and current setup. We’ll recommend a practical starting point and provide a custom quote.
Custom quote within 2 working days