App Development / Focused Capability
/Flutter & React Native / One Codebase Dual Platform
Best Cross-Platform App Development Service in Bangladesh
Reach Android & iOS With One Smart Development Approach. Framecipher builds cross-platform apps with Flutter and React Native for startups, growing businesses, and established companies that need reliable Android and iOS applications without managing two completely separate development efforts. We share code where it makes sense, use native modules where the platform requires them, and handle strategy, UI/UX, development, testing, and dual-store deployment through one in-house team.
Flutter & React Native
Single-codebase cross-platform mobile engineering with zero performance compromises
Shared Logic & Native Modules
Shared business workflows coupled with native Kotlin and Swift bridges where needed
Dual Store Deployment
Synchronized publishing to both Apple App Store and Google Play Store ecosystems
Lifecycle SLA Maintenance
Continuous framework updates, OS compatibility patching, and real-device QA
End-To-End Delivery
Our Cross-Platform App Development Services
We build cross-platform applications around your product goals, users, integrations, and long-term roadmap.
Framework Strategy & Architecture
Before development starts, we assess your requirements and decide whether Flutter, React Native, native development, or a hybrid approach fits the product. We map shared business logic, platform-specific functionality, API needs, state management, data flow, and scalability requirements before coding begins.
UI/UX Design for Both Platforms
We design a consistent product experience while respecting the conventions users expect on Android and iOS. That includes user flows, adaptive layouts, platform-aware navigation, interaction states, prototypes, and interface systems that work across supported devices.
Cross-Platform Development - Flutter / React Native
We build the shared application layer with Flutter or React Native based on the needs of your project. Common business logic, application workflows, API communication, and reusable components can be shared, while platform-specific features can be handled through native modules.
Testing, Deployment & Dual Store Launch
We test Android and iOS independently instead of assuming one working build guarantees the other will behave the same way. The release process can include real-device testing, regression checks, TestFlight, Google Play testing, App Store Connect, Play Console, and production deployment.
Ongoing Support & Maintenance
After launch, we can continue supporting the application through bug fixes, framework updates, operating-system compatibility work, performance improvements, and new feature development.
Targeted Solutions
Cross-Platform Apps We Build
We develop cross-platform apps for customer-facing products, internal business systems, marketplaces, and connected digital services.
E-commerce & Retail Apps
Build mobile shopping experiences with product discovery, search, customer accounts, carts, checkout, payments, order tracking, and notifications.
Delivery & Logistics Apps
Connect customers, drivers, delivery teams, and operations through ordering, location tracking, route-related workflows, status updates, and notifications.
Booking & Service Apps
Manage appointments, reservations, scheduling, availability, service requests, reminders, and customer communication from mobile devices.
Marketplace & On-Demand Apps
Support customers, vendors, providers, and partners with profiles, listings, search, messaging, transactions, reviews, and service workflows.
Business & Internal Apps
Create staff, field-force, dealer, vendor, CRM, reporting, approval, and operational applications around your existing business processes.
FinTech & Payment Apps
Build transaction-focused experiences with authentication, account workflows, payment integrations, notifications, and financial data flows based on your product requirements.
Healthcare & Education Apps
Develop patient, wellness, learning, student, content, scheduling, tracking, and communication experiences for supported business models.
SaaS & Product Apps
Extend an existing SaaS platform, website, or digital service into a dedicated mobile experience connected to your existing backend and user accounts.
Why Choose Cross-Platform App Development?
Cross-platform development works well when your Android and iOS products share substantial functionality and you want a coordinated approach to development and maintenance.
Reach Android & iOS From One Product Build
A shared codebase can allow common business logic and application features to be developed once and delivered across both platforms.
Faster Product Iteration
When a large portion of the application is shared, teams can coordinate feature development and updates across Android and iOS without duplicating every implementation.
Lower Duplicate Development Effort
Shared code can reduce repeated work across business logic, API integration, validation, and other common application components.
Consistent Product Experience
A shared foundation can help keep important business rules and core workflows aligned between Android and iOS.
Easier MVP Validation
For startups and growing businesses, launching on both platforms from a shared development approach can provide a practical way to validate the product with both audiences.
When Cross-Platform May Not Be the Right Fit
Cross-platform is not automatically the right choice for every product. Apps that rely heavily on specialized hardware, advanced graphics, deeply platform-specific behavior, or highly customized native experiences may benefit more from native development. The right decision depends on the product, not the framework.
Cross-Platform vs Native App Development
The right development model depends on your feature set, platform requirements, budget, timeline, and long-term roadmap.
| Factor | Cross-Platform | Native |
|---|---|---|
| Code sharing | High for suitable application logic | Separate platform codebases |
| Android + iOS | One coordinated development approach | Separate implementations |
| Development effort | Can reduce duplicated work | More platform-specific work |
| Platform-specific features | Supported with plugins or native modules | Direct native access |
| UI approach | Shared foundation with platform-aware adjustments | Fully platform-specific |
| Maintenance | Common code may simplify updates | Separate platform maintenance |
| Best fit | Products with substantial shared logic | Products needing deeper platform specialization |
When Cross-Platform Makes Sense
Cross-platform is often a practical fit when you need both Android and iOS, share substantial business logic, have a controlled feature set, and want a coordinated development approach.
When Native Development Makes More Sense
Native development can be more suitable when your application depends heavily on platform-specific APIs, specialized hardware, advanced graphics, or highly customized platform behavior.
Cost, Timeline & Maintenance
Cross-platform development can reduce duplicated implementation when large parts of the application can be shared. However, total cost still depends on architecture, native modules, backend systems, design complexity, integrations, testing, and ongoing support.
Performance & Platform-Specific Features
Cross-platform applications can provide strong performance for many business and consumer products. Performance-sensitive or deeply platform-specific features may still require native code to deliver the right result.
Hybrid Development: Shared + Native
A hybrid approach can use shared cross-platform code for the majority of the application while implementing selected features with native iOS or Android technologies.
How We Choose the Right Approach
We review your target users, features, integrations, device requirements, roadmap, timeline, and budget before recommending a development approach.
Flutter vs React Native: Which Should You Choose?
Flutter and React Native can both support serious Android and iOS applications. The right choice depends on your product and technical context.
Flutter App Development
Flutter can be a strong fit for products that need a highly controlled interface, reusable components, and a consistent cross-platform visual system. It can work particularly well when the application has substantial custom UI requirements and the project is being designed around a fresh cross-platform architecture.
React Native App Development
React Native can be a strong fit for products that benefit from the JavaScript or TypeScript ecosystem, existing React knowledge, or an established React-based technology environment. It can also be practical when a product or internal team already works heavily with the broader React ecosystem.
| Factor | Flutter | React Native |
|---|---|---|
| Primary language | Dart | JavaScript / TypeScript |
| UI approach | Flutter widgets and rendering | React-based development with platform integration |
| Visual control | Strong | Strong with platform-aware implementation |
| Existing React ecosystem | Limited relevance | Major advantage |
| Native integration | Native platform integration available | Native modules and platform integration available |
| Strong fit | Custom interfaces and controlled cross-platform experiences | Products aligned with React or JavaScript/TypeScript |
Which Framework Fits Your Product? The decision depends on your UI requirements, existing systems, development team, integrations, performance needs, and future product direction.
What We Recommend Based on Your Requirements: We do not force every client into the same framework. We recommend Flutter, React Native, native development, or a hybrid model based on what your application actually needs.
Capabilities & APIs
Cross-Platform App Features & Integrations
We build the application around the workflows, users, and integrations required by your business.
User Accounts & Authentication
Support email and phone login, social sign-in, secure sessions, biometrics, account recovery, and role-based access.
User Roles & Permissions
Create different experiences for customers, employees, vendors, drivers, providers, managers, administrators, and other user types.
Payments & Transactions
Integrate supported payment gateways, subscriptions, checkout workflows, transaction records, and payment-related application logic.
Push Notifications
Configure push notifications for both Android and iOS using the appropriate platform services and event flows.
GPS, Maps & Location
Build location-aware experiences for delivery, booking, field operations, route tracking, nearby services, and other location-based products.
Camera & Media
Support camera access, image uploads, document capture, media selection, and other device-based content workflows.
Chat & Real-Time Features
Build messaging, live status updates, real-time notifications, and other connected functionality where the application requires it.
Analytics & Crash Monitoring
Connect analytics and crash-monitoring tools to understand application behavior and identify issues after release.
CRM, ERP & Business Systems
Connect your mobile application with existing CRM, ERP, inventory, accounting, customer support, or internal business systems.
Third-Party API Integration
Integrate external services for payments, maps, shipping, authentication, communication, analytics, and other required workflows.
Offline & Local Storage
Support offline access, local data persistence, sync queues, and retry logic for applications used in low-connectivity environments.
Background Services
Run background tasks, periodic jobs, and event-driven processes on both Android and iOS where the product requires it.
Cross-Platform App Architecture
A reliable cross-platform application should share the right code without forcing every feature into the same implementation.
Shared Application Logic
Common business rules, validation, models, workflows, and reusable application functionality can be structured for both platforms.
State Management
We organize application state so screens, sessions, data, and user actions remain predictable as the product grows.
API & Data Layer
Networking, authentication, models, API responses, local data, and error handling are structured separately from the interface where appropriate.
Local Storage
Applications that need local data can use suitable device storage for cached content, preferences, offline workflows, and temporary application state.
Modular Structure
Features can be organized into maintainable modules so the application remains easier to extend as the product becomes larger.
Scalable Backend Connection
The mobile architecture is planned around the backend it depends on, including authentication, APIs, file handling, notifications, business logic, and administrative workflows.
Shared Code & Native Module Integration
Cross-platform does not mean every part of the application must be identical on both operating systems.
iOS Native Modules
Selected features can use native iOS technologies when deeper access to Apple APIs, device capabilities, or platform-specific behavior is required.
Android Native Modules
The same approach can be used for Android-specific functionality that requires direct access to Android APIs or device capabilities.
Device & Hardware Features
Camera, Bluetooth, biometrics, location, sensors, notifications, background functionality, and other device features may require platform-aware implementation.
Platform-Specific Business Logic
Some workflows may need different behavior on Android and iOS because the platforms expose different capabilities or follow different interaction patterns.
Native Where Needed, Shared Where Possible
Our goal is not maximum code sharing at any cost. We share what benefits from sharing and use native implementation when it produces a cleaner and more reliable product.
Platform-Aware UI/UX Design
A shared application foundation does not require an identical interface on every platform.
Platform-Aware Interface Design
We maintain a consistent brand experience while adapting navigation, controls, spacing, interactions, and interface patterns where Android and iOS differ.
User Flow Mapping
We map important user journeys before development so customers can complete key actions naturally on both platforms.
Adaptive Layouts
Interfaces are designed around supported device sizes rather than one fixed mobile layout.
Prototype & Usability Review
Important flows can be validated through prototypes and early device testing before development is finalized.
Cross-Platform App Technology Stack
We choose technologies based on the application rather than forcing every project into one fixed stack.
| Layer | Technologies |
|---|---|
| Cross-Platform | Flutter, React Native |
| Languages | Dart, JavaScript, TypeScript |
| Android | Android SDK, Kotlin for native modules |
| iOS | iOS SDK, Swift for native modules |
| UI | Flutter widgets, React Native, platform-specific UI |
| Networking | REST APIs, JSON, GraphQL where required |
| Backend | Node.js, PHP/Laravel, or existing client backend |
| Database | MySQL, PostgreSQL, Firebase, SQLite/local storage |
| Services | Firebase, push notifications, analytics, crash monitoring |
| Development | Xcode, Android Studio, Git |
| Testing | Unit, integration, UI, device, regression testing |
| Release | TestFlight, App Store Connect, Google Play Console |
The final stack depends on the product, existing systems, project scope, and long-term maintenance requirements.
Security & Privacy
Cross-Platform App Security & Data Protection
Security needs to be considered as part of architecture and application development.
Secure Authentication
Implement suitable authentication, session handling, account recovery, and access control based on application requirements.
Role-Based Authorization
Different users should only access the data and features assigned to their roles.
API Security
We account for authentication, authorization, validation, secure communication, and appropriate backend controls.
Secure Data Storage
Sensitive information is handled using suitable storage and transmission practices for the product.
Payment Security
Payment workflows are implemented around the selected provider and its required security model without storing unnecessary sensitive payment information inside the application.
Permission Management
Camera, location, notifications, contacts, Bluetooth, and other permissions are requested based on actual feature requirements.
Dependency Maintenance
Frameworks, plugins, packages, and dependencies need ongoing review as the application evolves and platform versions change.
Privacy-Aware Development
We review what data the application collects, how permissions are requested, and what user-facing disclosures are required for each platform.
Accessibility & Localization for Cross-Platform Apps
A cross-platform application should work across different users, devices, and markets.
Accessible Navigation
We consider clear navigation, readable content, suitable touch targets, and screen-reader-friendly structures where required.
Text Scaling & Contrast
Interfaces can be designed to remain usable when users increase text size or need stronger visual contrast.
Bangla & English Support
For Bangladesh-focused products, interfaces can be prepared for both Bangla and English users.
Multilingual Interfaces
Additional languages can be planned into the design and development structure for international products.
Network Resilience
Offline Functionality & Real-World App Conditions
Mobile users may not always have a fast or stable internet connection.
Offline Data Access
Applications can store suitable information locally when users need to continue working without a reliable connection.
Sync & Recovery
Offline changes can be synchronized when connectivity returns, based on the product's data rules.
Retry Handling
Network requests can be designed to recover from temporary failures rather than leaving users with incomplete workflows.
Slow Network Support
Loading states, retries, caching, timeouts, and clear feedback can help maintain usability under weaker network conditions.
Conflict Handling
For products where multiple users can change the same information, synchronization rules should define how conflicting changes are handled.
Hardware Optimization
Cross-Platform Performance & Device Compatibility
A cross-platform application still runs across different devices, operating systems, screen sizes, and hardware conditions.
Android Device Compatibility
We account for the supported Android versions, screen sizes, hardware differences, and agreed device range.
iPhone & iPad Compatibility
Supported Apple devices and operating-system versions are considered throughout development and testing.
App Startup & Rendering
We review launch behavior, screen rendering, animations, data-heavy views, and other performance-sensitive areas.
Memory & Resource Usage
Resource-heavy workflows and performance-sensitive screens are reviewed to reduce unnecessary device strain.
API & Network Performance
We review API response handling, loading states, caching, timeouts, and network-dependent workflows.
Real-Device Validation
Where required, testing includes physical Android and Apple devices rather than relying only on emulators and simulators.
Quality Assurance
Cross-Platform App Testing & Quality Assurance
Shared code does not guarantee identical behavior across both platforms.
Functional Testing
We verify authentication, navigation, forms, business rules, user flows, notifications, and core features.
Android Testing
Supported Android devices, versions, screen sizes, permissions, and platform-specific behavior are tested within the agreed scope.
iOS Testing
Supported Apple devices, iOS versions, permissions, navigation patterns, and platform-specific behavior are tested independently.
Integration Testing
We test APIs, payment systems, authentication, maps, notifications, analytics, and third-party services.
Performance Testing
We review loading, rendering, memory-sensitive workflows, API behavior, and other important application performance areas.
Network Testing
Slow connections, temporary service failures, interrupted requests, and recovery behavior are tested where relevant.
Regression Testing
After important changes, affected workflows are tested again before release.
Release Validation
Both platform builds are reviewed against the approved scope before submission.
App Store & Google Play Deployment
A cross-platform application still has two separate store-release processes.
iOS Release Preparation
We prepare the iOS build, signing configuration, App Store Connect information, and TestFlight workflow within the agreed scope.
Android Release Preparation
We prepare the Android production build, signing configuration, Play Console information, testing track, and release workflow.
TestFlight Beta Testing
iOS builds can be distributed through TestFlight for controlled pre-release testing and feedback.
Google Play Testing
Android builds can be validated through appropriate Play testing tracks before production release.
Store Submission
We prepare the application and relevant release information for both platforms based on the approved project scope.
Release Handoff
After deployment, project files, documentation, and relevant release information are handed over for ongoing management.
Cross-Platform App Migration & Modernization
Already have an application? We can review the existing product before deciding whether migration or modernization is the right move.
Native Android to Cross-Platform
Existing Android applications can be evaluated for migration when a shared Android and iOS architecture better supports the future roadmap.
Native iOS to Cross-Platform
Existing iOS products can be assessed for shared-code development while retaining native implementation for features that need it.
React Native Migration
Older React Native applications can be reviewed for dependency updates, architecture improvements, performance work, and framework modernization.
Flutter Modernization
Existing Flutter applications can be reviewed for outdated packages, maintainability, architecture issues, and performance concerns.
Legacy Dependency Review
We identify outdated libraries, unstable integrations, technical debt, and dependencies that may create future compatibility problems.
Feature & Data Migration
Existing business logic, APIs, user accounts, workflows, and data requirements can be mapped into the new architecture according to the migration scope.
Deliverables & Handoff
What You Receive From a Cross-Platform Development Project
Your final deliverables depend on the approved scope, but a complete engagement can include:
Strategy & Architecture
Requirements, framework recommendation, technical architecture, shared-vs-native decisions, and project planning.
UI/UX
Platform-aware user flows, interface design, prototypes, adaptive layouts, and approved design assets.
Cross-Platform Application
Flutter or React Native development with shared application logic and native modules where required.
Backend & Integrations
API connections, authentication, payment services, notifications, analytics, business systems, and other agreed integrations.
Testing & Release
Android and iOS testing, production builds, TestFlight support, Google Play testing, and store submission assistance.
Handoff & Documentation
Source code, project files, technical documentation, access handover where applicable, and relevant release information.
Why Choose Framecipher for Cross-Platform App Development
One In-House Team
Strategy, design, development, integrations, testing, and release stay within one coordinated team.
Framework Chosen for Fit
We do not sell one framework to every client. We evaluate Flutter, React Native, native development, or a hybrid approach around your actual requirements.
Shared Where It Makes Sense
We use shared code where it improves development and maintenance without forcing platform-specific functionality into awkward workarounds.
Built for Both Platforms
Android and iOS are tested independently because a working build on one platform does not automatically guarantee the same result on the other.
Business-First Development
We start with the product goals, users, workflows, and technical requirements before deciding how the application should be built.
Clear Review Points
Important requirements, designs, builds, and release milestones are reviewed with you before the next stage begins.
Long-Term Support
The same team can continue with bug fixes, framework updates, platform changes, performance work, and new feature development after launch.
Transparent Communication
We provide clear updates on progress, technical decisions, scope changes, and timelines throughout the project.
Cross-Platform App Development Services Across Bangladesh & Worldwide
Framecipher provides cross-platform app development services from Dhaka, Bangladesh for businesses, startups, and organizations across Bangladesh and international markets.
We work with businesses in Dhaka, Chattogram, Sylhet, Rajshahi, Khulna, Gazipur, Narayanganj, and other locations across Bangladesh.
Our remote workflow also supports clients in the USA, UK, Australia, Canada, UAE, and other international markets.
Whether you need an MVP, customer-facing app, internal business system, marketplace, or larger digital product, we manage strategy, design, development, integration, testing, and release through one in-house team.
Our Engineering Methodology
How We Approach a Cross-Platform App Build
A coordinated development methodology connecting product goals, platform-aware UI/UX, shared architecture, and dual-store release.
Initial Consultation
We discuss your app idea, business goals, target users, required features, existing systems, and project priorities.
Strategy & Architecture Planning
We review the product requirements and define the framework, technical architecture, shared-vs-native approach, integrations, and initial scope.
Design & Development
We create the platform-aware interface and develop the approved application with regular review checkpoints.
Testing & Quality Assurance
We test both platforms independently across the agreed devices, features, integrations, and release conditions.
Launch & Dual Store Deployment
We prepare the production builds, support the required testing and submission workflows, and move both applications toward release.
Scope & Investment
Cross-Platform App Development Pricing and Timeline
Cross-platform pricing depends on feature complexity, UI/UX requirements, native module work, backend systems, integrations, supported devices, and testing scope.
Simple App (MVP-Level)
৳380,000
Typical Delivery: 7–9 weeks
What's Included:
- Core features
- Shared codebase (single platform scope)
- Basic backend
- Standard UI/UX
- Foundational testing
Standard App
৳600,000
Typical Delivery: 11–15 weeks
What's Included:
- Android + iOS shared codebase
- Moderate feature set
- Platform-aware UI/UX
- Integrations & shared APIs
- Some native modules
- Dual-store release prep
Advanced App
৳950,000
Typical Delivery: 15–20 weeks
What's Included:
- Complex feature set
- Real-time functionality
- Extensive integrations
- Advanced native modules
- Offline & performance tuning
- Comprehensive device QA
Enterprise-Scale App
Custom Quote
Typical Delivery: 20+ weeks
What's Included:
- Complex infrastructure
- Advanced security & SSO
- Multiple integrations
- Multi-role workflows
- Dedicated architecture
- Ongoing SLA support
Included at Every Tier
- Strategy & consultation
- Platform-aware UI/UX
- Flutter or React Native development
- Testing & quality assurance
- Release preparation
- Launch support
Custom Requirements
Advanced backend systems, multiple user roles, complex third-party integrations, extensive native functionality, and larger device scopes can change the final project cost.
We confirm the final deliverables, timeline, and price before development begins.
Approvals, Scope & Release Support
Apple and Google control their respective app review processes, so no development agency can guarantee store approval.
Our role is to prepare the application and submission materials according to the agreed project scope and current platform requirements.
Clear Project Scope
Features, supported devices, integrations, revision rounds, and deliverables are agreed before development begins.
Client Approval
You review important designs, functionality, builds, and release milestones before submission.
Third-Party Dependencies
Payment providers, APIs, developer accounts, external services, and platform changes can affect functionality or launch timing.
Review Feedback
If Apple or Google requests development-related changes during review, we can assess and address them within the agreed support scope.
Post-Launch Cross-Platform App Support
Launching on both platforms is the beginning of the application's maintenance cycle.
Bug Fixes & Technical Support
Investigate crashes, application bugs, API issues, and other technical problems after release.
Framework Updates
Keep Flutter or React Native dependencies and related application components current as the product evolves.
Android & iOS Updates
Review compatibility as new operating-system versions and platform requirements are introduced.
Feature Enhancements
Add new functionality and improve existing workflows as your product grows.
Performance & Security Maintenance
Review integrations, dependencies, application behavior, and security-sensitive areas during ongoing development.
Future Releases
Prepare, test, and support new application versions for both platforms based on the agreed maintenance scope.
Direct Answers
Frequently Asked Questions
Common questions about our delivery process, technical standards, and engagement models.
Should I choose Flutter or React Native?+
Will a cross-platform app feel as good as two separate native apps?+
Is cross-platform actually cheaper than building native apps for both platforms?+
Do you handle submission to both Google Play and the App Store?+
Do you work with clients outside Bangladesh?+
Ready to Build?
Start Your Cross-Platform App Development Project
Have an app idea, an existing product, or a business workflow that needs Android and iOS support?
Tell us what you want to build, who will use it, and what stage your project is at.
We will review the requirements and help you choose the right development approach for your product.