Mobile app development
Android and iOS apps from one Flutter codebase
Cross-platform mobile development in Flutter and Dart - business apps, healthcare apps, e-commerce and on-demand platforms, integrated with the systems you already run.
Short answer
Flutter app development uses Google Flutter framework and the Dart language to build Android and iOS applications from a single codebase. BZ Softech delivers UX and UI design, app development, API integration, device testing, store submission and post-release maintenance.
Why Flutter
Two native teams building the same app twice is expensive, and the two versions drift apart. Flutter removes the duplication: one Dart codebase, one set of business logic, one place to fix a bug. Flutter draws its own widgets rather than wrapping platform controls, so the interface stays consistent across devices and Android versions instead of degrading on older hardware.
That is not a universal argument. If your app is built around advanced camera pipelines, ARKit, or deep OS integration, native is the honest recommendation and we will make it.
Flutter and Dart expertise
State management chosen deliberately rather than by habit, a component library rather than copy-pasted widgets, typed models for every API response, and tests at unit, widget and integration level. Release builds are obfuscated and split per ABI to keep download size down.
Android development
Material behaviour where users expect it, support for the Android versions your actual users run - not just the newest - background work through WorkManager, and Play Store release management with staged rollout.
iOS development
Cupertino conventions where appropriate, App Store review requirements handled before submission rather than after rejection, push notifications through APNs, and TestFlight builds for your reviewers.
Business applications
Field service, sales force automation, inventory and stock counting, approvals, inspections and reporting. These apps usually matter more for what they connect to than what they show, so integration is designed first.
Healthcare applications
Appointment booking, patient portals, doctor schedules, lab result delivery and prescription views, connected to a hospital management system. Access control, session handling and audit logging are treated as clinical requirements, not features.
E-commerce and on-demand applications
Product catalogue, search, cart, payment gateway integration, order tracking, delivery assignment, and push notifications tied to order state.
API and backend integration
Your app talks to a documented API layer, never straight to a production database. Where that layer does not exist, we build it - in Node.js, Laravel or against Oracle - with authentication, rate limiting and versioning.
Security, testing and deployment
Tokens in secure platform storage, biometric unlock, certificate pinning where the threat model justifies it, and no secrets in the binary. Testing runs across a device matrix that includes the older phones your users actually own. Deployment covers signing, store listings, privacy declarations, staged rollout and crash monitoring.
Maintenance
Apps break when the platforms move. Annual OS releases, SDK deprecations and store policy changes all need attention. Maintenance covers those upgrades, crash triage and small feature changes, so the app does not quietly stop working eighteen months after launch.
What's included
What flutter app development covers
One codebase, two platforms
Android and iOS from a single Dart codebase, with platform-specific behaviour where users expect it.
App UI and UX
Interface design that follows platform conventions rather than fighting them, tested on real devices.
API and backend integration
Connection to your existing ERP, CRM or hospital system through REST APIs, with offline queueing where needed.
Healthcare apps
Appointment booking, patient records, lab results and doctor schedules, connected to a hospital management system.
E-commerce and on-demand apps
Catalogue, cart, payments, order tracking and push notifications for retail and delivery businesses.
Customer and enterprise portals
Field service, sales force and self-service apps with role-based access and audit trails.
App security
Secure storage for tokens, certificate pinning where warranted, biometric unlock and obfuscated release builds.
Store deployment and maintenance
Play Store and App Store submission, release management, crash monitoring and version support.
Business outcomes
What changes for the business
One team instead of two
A single Flutter team covers both platforms, which usually lands cheaper than separate native builds for the same scope.
Consistent interface everywhere
Flutter renders its own widgets, so the app looks and behaves the same across devices and OS versions.
Faster iteration
Hot reload and a shared codebase shorten the loop between a change request and something you can hold in your hand.
Native access when required
Camera, GPS, Bluetooth, biometrics and payment SDKs are reached through platform channels when a plugin is not enough.
Technology stack
Tools we use on this work
- Flutter
- Dart
- Android
- iOS
- Firebase
- REST APIs
- Node.js
- Laravel
- PostgreSQL
- SQLite
How we work
How an engagement runs
- 01
Requirements and platform decision
We confirm Flutter is the right call. If your app genuinely needs deep native work, we will say so.
- 02
UX flows and wireframes
Screen-by-screen flows agreed before visual design, so scope arguments happen on paper.
- 03
UI design
A design system in Flutter terms: components, states, spacing and typography.
- 04
Development
Two-week iterations with builds distributed to your team through TestFlight and internal Play testing.
- 05
Testing
Unit, widget and integration tests, plus manual testing on a real device matrix covering older Android versions.
- 06
Release and support
Store submission, staged rollout, crash monitoring, and a support window for the first releases.
Frequently asked questions
Flutter app development - questions and answers
A Flutter app development company designs and builds mobile applications using Google Flutter framework and the Dart language, producing Android and iOS apps from one codebase. The work covers UX and UI design, app development, API and backend integration, testing on real devices, store submission, and maintenance after release.
For most business applications, yes. Flutter handles data entry, dashboards, catalogues, booking flows, field-service tools and customer portals well. It is a weaker fit for apps built around heavy platform-specific features such as advanced AR, intensive background audio processing or deep OS integration, and we recommend native development in those cases.
It depends on scope, but a single codebase generally removes most of the duplicated build effort across the two platforms. Design, testing and store management still apply to both. The larger saving usually shows up later, when every change is made once instead of twice.
Yes. Local storage with SQLite or Hive, request queueing and background synchronisation let staff keep working without a connection, with changes reconciled when the device comes back online. This is common in field service, delivery and clinical settings.
Yes, through APIs. Where the existing system has no API, we build a documented integration layer in front of it, so the mobile app never talks to your production database directly.
Yes. We prepare store listings, screenshots, privacy declarations and signing, then manage the submission and any review feedback. Publishing under your own developer accounts is preferable, so you keep ownership.
Related services
Work that usually goes with this
Web development services
Corporate websites, custom web applications, e-commerce, portals and SaaS platforms, built for performance, search visibility and long-term maintenance.
Custom software development
Bespoke business applications designed around your process - from discovery and data modelling through integration, migration, training and long-term support.
Hospital management system development
Hospital management system development and implementation covering clinical, administrative and financial modules on a single integrated patient record.
Scope your Flutter app
Describe the app and the systems it needs to talk to. We will come back with a phased scope and a realistic timeline.
Call us +92 311 7730410