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.

Mobile app development for iOS, Android and cross-platform applications
Customer mobile app for service access and account management

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
Business mobile app for workforce tasks and operational information

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 App
Ecommerce mobile app for products, cart and order management

Ecommerce 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 and service mobile app for appointments and scheduling

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 mobile app connected to an existing digital platform

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 and field service mobile app for driver workflows and tracking

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 dashboard app for reports, tasks and management workflows

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 app integrated with business systems

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 Integrations
Platform Planning

Choosing 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.

Target users iOS or Android Device features Existing backend Required integrations Project scope
Comparison of iOS, Android, native and cross-platform mobile app development approaches.
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
Platform selection should follow the application requirements. Choosing native or cross-platform development should not be based on a single rule. The decision depends on the target users, required device functionality, integrations, existing systems, project scope and expected application behavior.
Technology Approach

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.

Framework Selection

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.

May suit projects where: Platform-specific functionality, interfaces or device capabilities are central to the application.
iOS / Android

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.

May suit projects where: The application targets both major mobile platforms and its functionality is appropriate for a shared cross-platform codebase.
Cross-platform

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.

May suit projects where: Cross-platform delivery is required and Flutter is compatible with the application's design, integrations and technical dependencies.
Cross-platform
Framework selection should happen after the app requirements are understood. The target platforms, user journeys, device functionality, integrations, backend systems and existing technology can all influence whether native development, React Native or Flutter is appropriate for a specific mobile application.
App Functionality

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.

The right feature set depends on the mobile application. A customer app, ecommerce application, booking app, field-service tool and business mobile application can require very different functionality. Features should therefore be selected after the target users, workflows, platforms, backend systems and integration requirements are defined.
Development Process

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.

Discovery

Requirements & App Goals

We define the target users, business requirements, required platforms, core functionality, backend dependencies and project boundaries before development begins.

Focus App requirements
Planning

User Flows & Functional Scope

Key user journeys, screens, actions, permissions and application workflows are mapped so the required functionality has a defined structure.

Focus User journeys
Experience

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.

Focus Mobile interface
Architecture

Technical Planning

The development approach, application structure, backend requirements, APIs, data responsibilities and platform dependencies are reviewed before implementation.

Focus Technical structure
Build

Mobile App Development

The approved screens, workflows and application functions are developed for the selected native or cross-platform implementation.

Focus Working application
Connections

Backend & API Integrations

Where required, the application is connected with supported backend services, databases, payment services, business systems or third-party APIs.

Focus Connected systems
Review

Testing & Device Review

Required user journeys, application functions, integrations and supported platform behavior are reviewed across the devices and environments included in the project.

Focus Functional review
Release

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.

Focus Release preparation
The mobile app development process can vary by project.

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.

Technology Stack

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

iOS Apple mobile application projects
Android Android mobile application projects
React Native Cross-platform mobile development
Flutter Cross-platform application development

Backend Technologies Application Services

Node.js Backend application services and APIs
Laravel PHP-based backend applications
PHP Server-side application development
Python / Django Backend services where required

Data & APIs Connected Systems

REST APIs Mobile-to-backend data exchange
MySQL Relational application data
PostgreSQL Relational database projects
MongoDB Document-based data requirements

Cloud & Delivery Deployment Layer

AWS Cloud services where selected
Google Cloud Cloud infrastructure where required
Azure Microsoft cloud environments
CI/CD Development and deployment workflows
The final mobile technology stack depends on the project.

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.

Project Scope

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-platform

Building 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 scope

The 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 scope

Applications with more user flows, states, custom interactions or platform-specific interface requirements can require additional design and implementation work.

Backend & Admin Systems

Server-side requirements

A 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 services

Payment 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 capabilities

Camera access, location services, notifications, file handling and other device capabilities can require additional implementation and platform-specific review.

Testing & Supported Devices

Quality review

The 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 scope

App Store or Google Play preparation, deployment activities and any agreed post-launch development should also be considered when defining the overall project scope.

Estimates should follow requirements, not assumptions.

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.

Existing Applications

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 development

UI/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 updates

API & 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 integration

New Third-Party Integrations

Supported payment services, maps, communication platforms, analytics tools or other external systems can be added where new integrations are required.

App integrations

Platform Compatibility Updates

Existing applications may require changes when supported operating-system versions, platform requirements, dependencies or device behavior change.

iOS & Android updates

Continued 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 development
An existing mobile app does not automatically need to be rebuilt. The appropriate approach depends on the current codebase, required features, platform requirements, dependencies and backend systems. Some applications can be extended directly, while others may require selected modernization or broader redevelopment.

Why 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.

Mobile app development concept with digital network and ecommerce icons

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.

Start a Mobile App Project

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.

Scroll to Top