Cross-platform app development
KPS provides cross-platform app development services for companies that need applications running on different platforms (desktop, web, Android, and iOS). Our teams develop shared application logic, interfaces, and integrations within a single codebase. At the same time, they adapt platform-specific elements where needed to keep the user experience consistent, intuitive, and visually clear across platforms.
Benefits
Need broad platform coverage? Cross-platform app development is your choice
When a product expands across several platforms, its planning, updates, maintenance, and consistency across environments become harder to manage over time. Cross-platform app development from KPS reduces repeated work, keeps core functionality aligned, and makes long-term product support easy to organize.
Platform coverage from one product foundation
Supports product delivery across web, Android, and iOS from a shared foundation
Reduces the need to build separate platform versions from the start
Helps businesses extend product availability without multiplying development tracks
Duplication reduction across development work
Reuses shared logic, interface elements, and integrations across platforms
Reduces repeated implementation of the same core functionality
Keeps engineering effort focused on product changes instead of parallel rebuilds
Release planning across multiple platforms
Keeps core updates easy to prepare across several platforms
Reduces the effort required to align releases between web and mobile products
Simplifies planning when the same feature affects multiple environments
Product consistency in core functionality
Maintains the same business logic and key user flows across platforms
Reduces the risk of core functionality working differently in each environment
Supports a consistent product structure where shared behavior matters
Platform adaptation where needed
Allows separate implementation for features tied to native behavior or device access
Supports platform-level adjustments when interaction patterns differ
Prevents shared code from forcing the same solution
Maintenance support as the product evolves
Simplifies updates when shared functionality changes across platforms
Reduces maintenance overhead compared to fully separate codebases
Supports product growth with less repeated effort over time
Need cross-platform application development to support web and mobile products?
KPS helps evaluate whether this approach fits your product, define where shared functionality makes sense, and identify where separate implementation may still be needed based on platform requirements.
Our Services
Cross-platform mobile app development services we provide for shared product delivery
Our services cover the main stages of building, extending, and supporting products across web and mobile platforms. This includes:
End-to-end development
Relevant for new products that need one delivery structure across web and mobile. Work covers application architecture, shared functionality, integrations, testing, and release preparation.
MVP and product launch support
Used when the goal is to validate an idea or launch with a limited scope. The focus stays on core functionality, a shared product structure, and a foundation that can be extended later.
Modernization and migration
Suitable for products that have become harder to maintain because functionality or interface logic is fragmented across platforms. The work may involve moving selected parts into a shared codebase, rebuilding interface layers, or updating the technical foundation.
UI implementation and design adaptation
Needed when products require shared interface logic but cannot rely on identical behavior everywhere. This service covers common UI structures and platform-level adjustments where navigation, interaction patterns, or screen behavior differ.
API integration and backend connectivity
Important for products that depend on internal systems and third-party services across several environments. Work here often centers on APIs, authentication, payments, analytics, CRMs, and other backend connections.
QA and testing
Relevant when one release must work reliably across several platforms, devices, and browsers. Coverage usually includes functional testing, regression checks, cross-environment validation, and defect handling before release.
Maintenance and long-term product support
Used after launch when the product continues to change across platforms. Support may range from updates and bug fixes to compatibility adjustments and incremental improvements.
Dedicated developers and delivery support
Useful when the main issue is limited internal capacity or missing framework expertise. Engineers can join the existing team or take responsibility for specific parts of delivery.
Technology Stack
Systems and tools KPS uses to support cross-platform mobile app development
Cross-platform mobile app development requires a stack that supports shared code, platform-specific adaptation, testing, release management, and ongoing support. KPS works with frameworks, tools, and infrastructure that align with these needs and keep delivery stable across development, release, and support stages.
Cross-platform frameworks
Core frameworks: Flutter, React Native, .NET MAUI
Languages: Dart, JavaScript, TypeScript, C#
Platform-specific implementation: native modules, platform channels, platform-specific code layersInterface development and UI structure
UI structure: shared component libraries, responsive layouts, platform-adapted navigation
Styling and design implementation: custom design systems, reusable UI components, platform-aware interface patterns
Web adaptation: responsive frontend layers, shared inteBackend connectivity and API integration
API communication: REST, GraphQL, WebSockets
Authentication and identity: OAuth 2.0, OpenID Connect, JWT-based authentication
Business integrations: payment services, analytics tools, CRM systems, ERP systems, notification servicesData storage and state management
Local storage and persistence: SQLite, secure local storage, shared preferences
State management: Provider, Riverpod, Bloc, Redux, Context API
Data handling: offline-first logic, caching strategies, background synchronizationTesting and quality assurance
Unit and component testing: Flutter test, Jest, NUnit
End-to-end and UI testing: Cypress, Playwright, Appium, Detox
Quality practices: regression testing, browser validation, device testing, automated test pipelinesCI/CD and release workflows
Build and automation tools: GitHub Actions, GitLab CI, Jenkins, Azure DevOps
Release workflows: App Store deployment pipelines, Google Play deployment pipelines, internal distribution builds
Code quality support: ESLint, static analysis, automated build validationCloud infrastructure and backend services
Cloud platforms: AWS, Google Cloud Platform, Microsoft Azure
Backend services: Firebase, Supabase, custom backend environments
Infrastructure support: storage services, serverless functions, push notification services, containerized servicesMonitoring and post-release support
Monitoring and diagnostics: Firebase Crashlytics, Sentry, New Relic
Performance and usage tracking: Google Analytics, Mixpanel, Datadog
Operational support: logging, error tracking, compatibility checks, release monitoring
Related Services
Additional services that strengthen cross-platform mobile application development
Software architecture assessment and planning
Legacy application modernization
Backend development services
UI/UX design services
DevOps and release process support
Dedicated development teams
Our Process
How KPS structures mobile cross-platform development process from planning to release
Multiplatform mobile app development requires a clear process from planning to release. Our approach keeps your scope, responsibilities, and delivery steps visible throughout the work.
STEP 1:
Product scope and platform needs
Your product stakeholders, together with our business analyst and project manager, define your product goals, platforms to support, priorities, and delivery constraints. This step sets the scope for your first release before development starts.
STEP 2:
Architecture and technical approach
Our solution architect and senior developers define the application structure, shared code boundaries, platform-specific logic, and integration approach for your product. This creates a technical foundation that fits your platform needs and delivery priorities.
STEP 3:
UX/UI design and planning
UI/UX designers prepare user flows, screen logic, and interface decisions for each supported platform in line with your product requirements. Where platforms differ in navigation patterns or interaction behaviour, designers define those separately to keep the experience consistent with how each platform actually works. At the same time, technical leads set implementation priorities so development can start with a clear structure and no open questions.
STEP 4:
Feature development and integration
Cross-platform developers build your core features, shared functionality, and backend integrations in defined cycles. At the end of each cycle, your project manager walks you through completed work, flags anything that needs your input, and confirms priorities for the next one. This keeps the work aligned with your budgets and deadlines without requiring your constant involvement.
STEP 5:
Testing and release validation
Our QA engineers test your product across devices, browsers, and operating systems, while developers fix issues found during validation. This step helps confirm that your product is ready for release across supported platforms.
STEP 6:
Deployment and post-launch support
Our developers and DevOps engineers prepare builds, manage deployment, and support your product after launch with fixes, updates, and incremental improvements. As your requirements change, the team plans the next steps without disrupting the existing product structure.
STEP 1:
Product scope and platform needs
Your product stakeholders, together with our business analyst and project manager, define your product goals, platforms to support, priorities, and delivery constraints. This step sets the scope for your first release before development starts.
STEP 2:
Architecture and technical approach
Our solution architect and senior developers define the application structure, shared code boundaries, platform-specific logic, and integration approach for your product. This creates a technical foundation that fits your platform needs and delivery priorities.
STEP 3:
UX/UI design and planning
UI/UX designers prepare user flows, screen logic, and interface decisions for each supported platform in line with your product requirements. Where platforms differ in navigation patterns or interaction behaviour, designers define those separately to keep the experience consistent with how each platform actually works. At the same time, technical leads set implementation priorities so development can start with a clear structure and no open questions.
STEP 4:
Feature development and integration
Cross-platform developers build your core features, shared functionality, and backend integrations in defined cycles. At the end of each cycle, your project manager walks you through completed work, flags anything that needs your input, and confirms priorities for the next one. This keeps the work aligned with your budgets and deadlines without requiring your constant involvement.
STEP 5:
Testing and release validation
Our QA engineers test your product across devices, browsers, and operating systems, while developers fix issues found during validation. This step helps confirm that your product is ready for release across supported platforms.
STEP 6:
Deployment and post-launch support
Our developers and DevOps engineers prepare builds, manage deployment, and support your product after launch with fixes, updates, and incremental improvements. As your requirements change, the team plans the next steps without disrupting the existing product structure.
Clients' feedback
What working with KPS looks like in practice
Client feedback shows how cooperation with KPS is organized in practice, how delivery is managed across stages, and how the final result performs once it is in use. It also gives a clearer view of how clients experience the process, the communication, and the results over time.
Naomi Rubinstein
Founder at BettercareThey are the best team we have ever worked with. The application increased the speed of receiving data by 4 times. Data loss was reduced by 10%. Ineffective tasks decreased by 7%. Response rate to customer requests increased by 23%. Our customers have seen significant increases in efficiency.
Aleksandr Podolyan
Technical Specialist & Product Manager., RDO UkraineKultprosvet has executed deliverables perfectly and provided us with a high-quality application. They’ve fulfilled our requirements, and the product perfectly fits our needs. The team’s development efforts have helped our business immensely.
Oleksandr Zainchukivskyi
Head of Technology, AMACOWe've had a very good experience with them. We trust them, and we'll continue to work with them. If we ever need something done, they always deliver.
Luc Lecorre
Luc Lecorre, Co-Investor, Luxury Handbag CompanyKultprosvet was highly knowledgeable, and they made us aware of some issues we hadn’t considered. They explained everything very clearly and helped us understand the broader scope of the work.
Yulia Goldenberg
PhD Researcher, Ben Gurion University of the NegevThe work is always delivered on time, and they are very fair about the pricing. Kultprosvet is transparent, and we know that we can trust them; we are never surprised by anything that comes up.
Cameron Tope
Founder, Rooya (Polysurance)Since working with Kultprosvet, our customers are much happier with the product and its UX. They’ve added flexibility where the system was previously rigid, and they take full responsibility for the project, quickly fixing any issues that arise.
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Naomi Rubinstein
Founder at BettercareThey are the best team we have ever worked with. The application increased the speed of receiving data by 4 times. Data loss was reduced by 10%. Ineffective tasks decreased by 7%. Response rate to customer requests increased by 23%. Our customers have seen significant increases in efficiency.
Aleksandr Podolyan
Technical Specialist & Product Manager., RDO UkraineKultprosvet has executed deliverables perfectly and provided us with a high-quality application. They’ve fulfilled our requirements, and the product perfectly fits our needs. The team’s development efforts have helped our business immensely.
Oleksandr Zainchukivskyi
Head of Technology, AMACOWe've had a very good experience with them. We trust them, and we'll continue to work with them. If we ever need something done, they always deliver.
Luc Lecorre
Luc Lecorre, Co-Investor, Luxury Handbag CompanyKultprosvet was highly knowledgeable, and they made us aware of some issues we hadn’t considered. They explained everything very clearly and helped us understand the broader scope of the work.
Yulia Goldenberg
PhD Researcher, Ben Gurion University of the NegevThe work is always delivered on time, and they are very fair about the pricing. Kultprosvet is transparent, and we know that we can trust them; we are never surprised by anything that comes up.
Cameron Tope
Founder, Rooya (Polysurance)OUR TEAM
Want to know who you’ll work with?
Contact our client support team, which will provide you with a technical evaluation of your needs and give you details on the collaboration resources you will need.
Anton Trakht
CEO at Kultprosvet
Mykola Aleksandrov
Account Executive
Help
Since working with Kultprosvet, our customers are much happier with the product and its UX. They’ve added flexibility where the system was previously rigid, and they take full responsibility for the project, quickly fixing any issues that arise.