Mobile App Development Services for iOS, Android & Cross-Platform Apps
Unisam Technologies develops mobile applications around user journeys, business requirements, backend systems and platform needs. We build customer apps, ecommerce apps, booking and service apps, delivery and field apps, business mobile applications, companion apps and API-connected mobile experiences for iOS, Android and cross-platform projects.


Customer Mobile Apps
We develop customer-facing mobile applications that can give users access to services, accounts, updates, requests, notifications and other functions included in the required customer journey.
Suitable for: service businesses, ecommerce operations and other organizations that need customers to interact through a mobile application.
Plan a Customer App
Workforce & Business Mobile Apps
We develop mobile applications for teams that need access to tasks, schedules, records, approvals, documents or operational information while working away from a desktop environment.
Suitable for: field teams, operations teams, managers and businesses that require mobile access to selected workflows.
Discuss a Business AppEcommerce Mobile Apps
Ecommerce mobile applications can include product catalogs, customer accounts, carts, checkout flows, order information, notifications and supported payment services according to the project requirements.
Suitable for: online stores, retail businesses, product sellers and marketplaces that require a mobile shopping experience.
Plan an Ecommerce App
Booking & Service Apps
We develop mobile applications for appointments, reservations, consultations, service scheduling and customer requests based on the booking rules and user journey required by the project.
Suitable for: appointment-based businesses, professional services and organizations that manage scheduled customer activity.
Plan a Booking App
Companion Apps for Existing Platforms
We develop companion mobile applications that connect with existing web platforms, software products, account systems or digital services so selected functionality can also be accessed from mobile devices.
Suitable for: existing software products, customer platforms and digital services that need a mobile application alongside their current system.
Discuss a Companion App
Delivery & Field Service Apps
We develop mobile applications for delivery and field workflows that can include assignments, status updates, location-related functions, notifications, reporting and other operational activities.
Suitable for: delivery teams, drivers, field service operations and businesses that manage work outside a central office.
Plan a Field App
Mobile Dashboards & Management Apps
Mobile management interfaces can give authorized users access to reports, tasks, requests, approvals, orders and other operational information included within the connected system.
Suitable for: managers, operations teams and organizations that need selected administration or reporting functions on mobile devices.
Plan a Mobile Dashboard
API-Connected Mobile Apps
Where supported technical access is available, mobile applications can connect with CRMs, payment services, web platforms, databases, administration systems and other third-party APIs.
Suitable for: projects where the mobile application must exchange data or actions with an existing backend or external system.
Discuss App IntegrationsChoosing the Right Mobile App Development Approach
The right approach depends on the users, target devices, required functionality, backend systems and how the application needs to be delivered. A project may focus on iOS, Android, both native platforms or a cross-platform mobile application depending on those requirements.
| Development Approach | May Suit Projects Where | Key Considerations | Platform Coverage |
|---|---|---|---|
| iOS App Development Apple platform | The application is intended primarily for iPhone or other supported Apple devices and the project requires an iOS-focused user experience. | Device requirements, supported iOS versions, Apple platform capabilities, backend connections and App Store preparation should be reviewed as part of the project. | iOS |
| Android App Development Android platform | The target users primarily use Android devices or the application needs an Android-specific implementation. | Device variation, supported Android versions, required device capabilities, backend services and Google Play release requirements can affect the implementation. | Android |
| Native iOS & Android Development Separate platform builds | A project requires dedicated implementations for both iOS and Android and platform-specific development is appropriate for the required functionality. | Separate codebases, platform-specific interfaces, testing requirements and release processes should be considered when planning the project. | iOS + Android |
| Cross-Platform App Development Shared development approach | The project needs to support both iOS and Android and the required features are suitable for a shared cross-platform development approach. | Framework choice, device features, third-party libraries, native integrations and platform-specific behavior should be reviewed before selecting the implementation approach. | iOS + Android |
Native, React Native or Flutter?
Native and cross-platform mobile app development can both be appropriate depending on the application. The choice between native iOS and Android development, React Native and Flutter should be based on the required device functionality, interfaces, integrations, target platforms and existing technical environment.
Choose the Approach Around the App Requirements
No single mobile development framework is the right choice for every application. The technical decision should follow what the app needs to do and how it needs to interact with each target platform.
- Target operating systems and devices
- Required native device capabilities
- Existing backend and APIs
- Platform-specific user experience
- Third-party libraries and integrations
- Existing application technology
Native Mobile App Development
Native development uses platform-specific technologies for iOS or Android. It may be appropriate when the application requires dedicated platform implementation or relies heavily on operating-system-specific behavior.
React Native App Development
React Native can be used to develop applications for iOS and Android through a shared development approach while still supporting platform-specific implementation where required.
Flutter App Development
Flutter is another cross-platform development option for building applications that target iOS and Android from a shared project structure while supporting the interfaces and integrations required by the application.
Features Your Mobile Application Can Support
Mobile application features should be selected around the users, tasks, data and connected systems involved in the project. Depending on the requirements, an app can support account management, payments, notifications, location-based functions, bookings, business workflows, reporting and backend integrations.
These are common mobile app capabilities rather than a fixed feature package. The final functionality should be defined according to the approved project scope, target platforms and available backend services.
Users & Access
Functions that define who uses the application and what each user can access or manage.
User Accounts & Profiles
Registration, sign-in, profile information and account-related functions can be included according to the required user journey.
Roles & Permissions
Different users can be given access to selected screens, actions or information where role-based functionality is required.
Messaging & Communication
Applications can include supported messaging, enquiry or communication workflows when these are part of the product requirements.
Customer Actions
Mobile functions that allow users to complete transactions, bookings and other service-related actions.
Payments & Checkout
Supported payment services can be integrated for purchases, bookings, subscriptions or other approved transaction flows where required.
Booking & Scheduling
Apps can support appointment selection, reservations, schedules, service requests and related booking workflows.
Search & Filters
Search, filtering, sorting and structured data views can help users find products, services, records or other application content.
Device & Mobile Functions
Features that make use of mobile-device capabilities and operating-system services.
Push Notifications
Push notifications can support updates, reminders, status changes and other application events where notification workflows are required.
Maps & Location Features
Where appropriate, apps can use supported location, mapping, address or route functionality based on the required user experience.
Camera & File Access
Device camera, image selection, document upload and file workflows can be included where the application requires them.
Data & Connected Systems
Functions that connect the mobile application with business systems, reporting data and backend workflows.
API & Backend Connectivity
Mobile applications can exchange data with supported APIs, existing platforms, databases and backend services where technical access is available.
Dashboards & Reporting
Authorized users can be given access to selected statistics, records, summaries or operational information within the mobile application.
Online & Offline Workflows
Where technically appropriate, selected application actions or data can be structured to support periods of limited connectivity and later synchronization.
Our Mobile App Development Process
Mobile app development begins with understanding what users need to do, which platforms the application must support and which systems it needs to connect with. We structure the project around requirements, user flows, interface planning, development, integrations, testing and release preparation according to the agreed scope.
Requirements & App Goals
We define the target users, business requirements, required platforms, core functionality, backend dependencies and project boundaries before development begins.
User Flows & Functional Scope
Key user journeys, screens, actions, permissions and application workflows are mapped so the required functionality has a defined structure.
Mobile UI/UX Design
Application screens and interactions are planned around mobile usage, required actions, information hierarchy and the interface needs of the target platforms.
Technical Planning
The development approach, application structure, backend requirements, APIs, data responsibilities and platform dependencies are reviewed before implementation.
Mobile App Development
The approved screens, workflows and application functions are developed for the selected native or cross-platform implementation.
Backend & API Integrations
Where required, the application is connected with supported backend services, databases, payment services, business systems or third-party APIs.
Testing & Device Review
Required user journeys, application functions, integrations and supported platform behavior are reviewed across the devices and environments included in the project.
Store Preparation & Deployment
Where included in scope, we prepare the application for the required deployment environment and support release preparation for the Apple App Store or Google Play.
A customer application, ecommerce app, field tool or companion application may require different design, backend, integration, testing and deployment activities. The final development process should follow the platforms, functionality and technical requirements defined for the project.
Mobile App Technologies & Development Tools
The technology stack for a mobile application should be selected according to the target platforms, required functionality, backend systems, integrations and existing technical environment. Different projects may use native, cross-platform, backend, database and cloud technologies in different combinations.
Mobile Platforms Application Layer
Backend Technologies Application Services
Data & APIs Connected Systems
Cloud & Delivery Deployment Layer
A native iOS application, Android application, cross-platform customer app and API-connected business app can require different combinations of mobile, backend, database and cloud technologies. The stack should be selected after reviewing the required features, integrations, target platforms and existing systems.
What Affects Mobile App Development Cost & Timeline
Mobile app development cost and timeline depend on the scope of the application rather than a single fixed estimate. Platform coverage, user journeys, feature requirements, backend services, integrations, device functionality, testing and release requirements can all influence the amount of work involved in a mobile app project.
Platforms & Development Approach
iOS / Android / Cross-platformBuilding for iOS, Android or both can change the project scope. The selected native or cross-platform approach can also affect implementation, testing and platform-specific work.
Screens, Features & User Journeys
Functional scopeThe number of screens alone does not define the project. User roles, actions, workflows, booking flows, payments, notifications and other functionality can significantly change the amount of application logic required.
UI/UX Requirements
Interface scopeApplications with more user flows, states, custom interactions or platform-specific interface requirements can require additional design and implementation work.
Backend & Admin Systems
Server-side requirementsA mobile application may require APIs, databases, user management, administration tools, business logic or other backend services in addition to the mobile application itself.
APIs & Third-Party Integrations
Connected servicesPayment services, CRMs, maps, external platforms and other APIs can add integration, configuration and testing work depending on the systems involved and the technical access available.
Device-Specific Functionality
Mobile capabilitiesCamera access, location services, notifications, file handling and other device capabilities can require additional implementation and platform-specific review.
Testing & Supported Devices
Quality reviewThe required operating-system versions, devices, user journeys, integrations and platform behavior determine the testing and review activities included in the project.
Release & Continued Development
Post-build scopeApp Store or Google Play preparation, deployment activities and any agreed post-launch development should also be considered when defining the overall project scope.
Unisam can review the required platforms, user flows, features, backend systems and integrations before defining the development scope and preparing a project estimate. The final cost and timeline depend on the requirements agreed for the individual mobile application.
Updating & Extending Existing Mobile Apps
Mobile app development does not always begin with a new application. Existing iOS, Android, React Native or Flutter apps may need additional features, interface updates, backend changes, new integrations or technical improvements as requirements change.
New Features & App Modules
Existing applications can be extended with additional screens, user functions, workflows or modules when new product requirements need to be supported.
Feature developmentUI/UX & User Flow Updates
Screens, navigation and application flows can be reviewed when the existing mobile experience no longer reflects current user or business requirements.
Interface updatesAPI & Backend Changes
Mobile applications can be updated to work with changed APIs, backend services, databases or administration systems where technical access and project scope allow.
Backend integrationNew Third-Party Integrations
Supported payment services, maps, communication platforms, analytics tools or other external systems can be added where new integrations are required.
App integrationsPlatform Compatibility Updates
Existing applications may require changes when supported operating-system versions, platform requirements, dependencies or device behavior change.
iOS & Android updatesContinued Mobile App Development
Where ongoing development is part of the engagement, approved fixes, feature changes, integrations and further application updates can be handled as the product evolves.
Ongoing developmentWhy Work With Unisam for Mobile App Development
Mobile app projects involve user experience, platform requirements, backend systems, integrations, testing and release preparation. Unisam Technologies approaches each project around the actual users, functionality, target platforms and technical requirements of the application.

User-Focused App Planning
We plan mobile screens, navigation and interaction flows around the actions users need to complete within the application.
Backend & API Integration
We connect mobile applications with supported backend services, databases, admin systems, web platforms, payment services and third-party APIs where technical access is available.
App Store & Google Play Preparation
Where included in the project scope, we can support application preparation for Apple App Store and Google Play release requirements, including build preparation, store information and publishing guidance.
Native & Cross-Platform Development
We can develop mobile applications for iOS, Android or both using native or cross-platform approaches such as React Native and Flutter where they fit the project requirements.
Roles, Accounts & User Access
Applications can include user accounts, different user roles, permissions and controlled access to selected features or information according to the required app structure.
Continued Mobile App Development
Where ongoing development is part of the engagement, we can work on approved fixes, feature additions, API changes, compatibility updates and further mobile app improvements after the initial release.
Mobile App Development Services FAQs
Mobile app development is the process of planning, designing, developing, testing and preparing applications for mobile devices. A project may target iOS, Android or both and can include backend services, APIs, databases, user accounts and third-party integrations depending on the requirements.
Yes. Unisam Technologies can develop mobile applications for iOS, Android or both platforms. The development approach is selected according to the target users, required features, device functionality, existing systems and project scope.
Yes. Cross-platform app development can be used when an application needs to support both iOS and Android through a shared development approach. Technologies such as React Native or Flutter may be considered where they fit the application's technical requirements.
The right choice depends on the application. Native development may suit projects that require platform-specific implementation, while React Native or Flutter may suit applications where a cross-platform approach is appropriate. Device functionality, integrations, UI requirements, existing technology and target platforms should all be reviewed before choosing a framework.
Yes, where required by the project. A mobile app backend can include APIs, databases, user management, business logic, administration tools and connections with other systems. Backend requirements should be defined together with the mobile application functionality.
Yes, where supported APIs or other technical access are available. A mobile application can connect with existing web platforms, CRMs, business systems, databases, payment services and third-party platforms according to the integration requirements.
Features depend on the project, but a mobile application can support user accounts, roles and permissions, push notifications, payments, booking and scheduling, maps and location functions, search and filters, messaging, camera or file access, dashboards, reporting and API connectivity.
Mobile app development cost depends on the project scope. Factors can include the target platforms, number and complexity of user journeys, required features, UI/UX work, backend development, integrations, device-specific functionality, testing and release requirements. A meaningful estimate should be prepared after these requirements are reviewed.
The development timeline depends on the size and technical requirements of the application. Platform coverage, screens, user roles, features, backend systems, integrations, testing and release preparation can all affect the schedule. The timeline should therefore be estimated after the functional scope is defined.
Yes. Existing iOS, Android, React Native or Flutter applications can be reviewed for new features, UI/UX changes, backend or API updates, new integrations, platform compatibility work and other approved development requirements.
Where included in the project scope, Unisam can support application preparation for Apple App Store and Google Play release requirements, including build preparation, store information and publishing guidance. Final review and approval remain subject to the respective platform's requirements.
Where continued development is included in the engagement, Unisam can work on approved fixes, feature additions, integration changes, compatibility updates and further application improvements after the initial release.
Ready to Plan Your Mobile App?
Tell us about your users, required features, target platforms and existing systems. Unisam Technologies can review your requirements and help define the scope for an iOS, Android or cross-platform mobile application.
