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Microsoft Application Development Services

We build custom Windows applications designed for scalability, performance, and user engagement to help transform your business. As a specialist Microsoft technology enablement partner, iSolve delivers bespoke software, mobile, web, and enterprise solutions, supported by cloud, data, infrastructure, and integration services.

Powering apps for South Africa’s most recognised brands

Microsoft & Windows Application Development Services

Build, modernise and integrate secure, scalable Windows applications using Microsoft technologies including .NET, C#, Azure, SQL and Microsoft Power Platform.

From business-critical desktop applications and enterprise systems to legacy modernisation and cloud-connected solutions, iSolve develops Windows applications around your users, processes, data and existing technology environment. We combine Microsoft technologies, modern application architecture and automation to create reliable, future-ready solutions that improve how your business operates.

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01Custom Windows Application Development

Purpose-built Windows desktop applications for operational, administrative and line-of-business requirements.

We design applications around your users, business rules, data and technology environment, with native performance, intuitive interfaces and scalable architecture rather than forcing your requirements into a predefined product.

02Enterprise Application Development

Complex applications designed to support business-critical processes, multiple user roles, system integrations, security requirements and large organisational environments.

iSolve builds and modernises bespoke enterprise applications that integrate with existing business systems, databases and Microsoft technologies.

03WinUI, Windows App SDK & WPF Development

Develop modern Windows applications using Microsoft technologies including WinUI, Windows App SDK and WPF.

For organisations already invested in the .NET ecosystem, we can build rich, data-driven applications using established architectural approaches such as MVVM, while supporting modern Windows interfaces and operating system integration.

04.NET & C# Development

Develop Microsoft applications using established .NET and C# technologies across desktop, enterprise, integration and cloud-connected use cases.

This includes new application development as well as the extension, refactoring and modernisation of existing Microsoft-based systems.

05Legacy Windows Application Modernisation

Modernise ageing WinForms, WPF, VB6 and other legacy Windows applications without automatically assuming everything needs to be rebuilt.

Depending on the existing architecture, we can assess opportunities to improve the interface, application structure, integrations, deployment, security and cloud connectivity while preserving valuable existing functionality and reducing disruption to the business.

06Azure Application Development

Extend Windows and enterprise applications into Microsoft Azure for cloud services, databases, identity, integration, data processing and scalable application infrastructure.

Azure can be used to modernise existing applications, connect distributed systems or support new cloud-connected functionality.

07Power Platform Application Development

Use Microsoft Power Apps and Power Automate where low-code development provides the right balance of speed, flexibility and maintainability.

For requirements that exceed the practical limits of low-code platforms, iSolve can combine Power Platform capabilities with custom .NET, Azure and Microsoft application development.

08Application & Enterprise Integration

Connect Windows applications securely with existing databases, ERPs, CRMs, Active Directory, Microsoft platforms, APIs and other enterprise systems.

The objective is to ensure information and workflows move between systems instead of becoming trapped in disconnected applications.

09Windows Services & Background Processing

Develop Windows Services and background processes for automation, data synchronisation, scheduled tasks, monitoring and other processes that need to run independently of the user interface.

These services can integrate with desktop applications, enterprise systems and server-side environments.

10Hardware & Peripheral Integration

Build Windows applications that integrate with business-critical hardware and peripherals such as printers, barcode scanners, biometric devices and other connected equipment.

Where required, integrations can be handled through USB, serial connections, APIs or device-specific drivers.

11Deployment & Update Management

Support application packaging, installation and controlled deployment across business environments.

This can include MSIX or MSI packaging, centralised updates and deployment through enterprise management tools, helping organisations maintain consistent application versions across users and devices.

12Application Support & Maintenance

Continue improving, maintaining and supporting applications after deployment rather than treating launch as the end of the project.

Support can include security and compatibility updates, bug fixes, performance improvements, feature enhancements, integration changes and ongoing modernisation as business requirements evolve.

Our work

Microsoft apps that we have delivered with excellence

Unlock your potential with iSolve Mobility Microsoft app development services. Our team creates premium mobile apps tailored to your needs, raising the bar for excellence in app development.

Proven Results. Delivered at Scale

What sets our Windows App Development apart from the rest?

As part of creating excellent Windows applications, you would need a dedicated, multidisciplinary team focused on your vision. Being a prime Windows app development agency with experience across different industries, we leverage our extended history to design solutions that can appropriately serve your business requirements. Our streamlined consulting and development processes will ensure you receive the quality product when you need it.

Build Smarter, Work Faster, Scale Seamlessly

Windows applications remain the backbone of enterprise IT ecosystems – powering critical workflows, business intelligence, and automation.

At iSolve Mobility, we specialise in next-gen Windows app development that integrates with your infrastructure, delivers real-time insights, and ensures enterprise-grade security and performance.

“We don’t just build Windows apps – we architect digital workspaces that drive measurable business growth.”
Tech stack

Technology Stack

C#
C#
.NET
.NET
.NET Core
.NET Core
ASP.NET
ASP.NET
WPF
WPF
UWP
UWP
WinUI
WinUI
XAML
XAML
Azure
AZ
AWS
AWS
GCP
GCP
Angular
Angular
Blazor
Blazor
SQL Server
SQL
MySQL
MySQL
PostgreSQL
PostgreSQL
MongoDB
MongoDB
Microsoft Graph API
MSG
Power Automate
PA
Azure Functions
ƒ
REST/GraphQL APIs
REST/GraphQL APIs
NUnit
NU
Selenium
Selenium
Appium
Appium
Postman
Postman
Docker
Docker
Jenkins
Jenkins
GitHub Actions
GitHub Actions
Azure DevOps
ADO
Industries

Industries We Serve

We develop Windows and Microsoft applications for organisations across industries where secure systems, connected data and efficient business processes matter.

01  Banking & Financial Services

Secure applications for transaction processing, fraud detection, reporting, analytics and operational workflows.

02  Healthcare & Life Sciences

Applications for patient and clinical data, diagnostics, medical systems, reporting and connected healthcare workflows.

03  Retail & eCommerce

POS applications, inventory management, supply chain systems, reporting dashboards and back-office operational tools.

04  Manufacturing & Industrial

Applications for production monitoring, industrial automation, IoT-connected systems, asset tracking and operational management.

05  Logistics & Transportation

Fleet and freight tracking, warehouse management, order processing, logistics workflows and operational monitoring.

06  Energy, Mining & Resources

Applications supporting asset monitoring, field operations, industrial processes, reporting and connected equipment.

07  Education & eLearning

Learning management, curriculum administration, training platforms, reporting and internal education systems.

08  Enterprise & Professional Services

CRM, workflow automation, analytics, reporting and bespoke line-of-business applications built around complex organisational processes.

09  Technology & Connected Products

Desktop, mobile and web applications supporting connected devices, smart products, IoT environments and digital services.

Whatever your industry, iSolve develops Microsoft applications around your users, systems, data and operational requirements.

How we work

Our Windows App Development Process

A structured development process takes your Windows application from initial requirements through design, development, deployment and ongoing improvement. Each stage focuses on building a secure, scalable and maintainable application that works within your wider Microsoft environment.

1

Discovery & Planning

We start by understanding your business goals, users, existing systems and technical requirements. This creates a clear development roadmap covering functionality, architecture, integrations, data requirements, security considerations and the wider project scope.

2

UI/UX Design

We translate requirements into intuitive user journeys and practical application interfaces. Wireframes, prototypes and interface designs help define how users will interact with the application before development begins, with accessibility and usability considered throughout.

3

Development & Integration

Our developers build the application using appropriate Microsoft technologies and established development practices. This includes application architecture, custom functionality, database development, API integration and connections with Azure, Microsoft 365 and other business systems.

4

Testing & Quality Assurance

Testing runs throughout development to validate functionality, usability, integrations, performance and compatibility. Issues are identified and resolved before deployment to help ensure the application performs reliably within its intended environment.

5

Deployment & Optimisation

Once the application is ready for production, we manage deployment into the required Windows and enterprise environment. This includes final validation, deployment planning, configuration and optimisation to support a stable transition into day-to-day use.

6

Ongoing Support & Evolution

Application development does not end at launch. We provide ongoing maintenance, technical support, updates, performance improvements and feature enhancements so the application can continue evolving alongside your users, technology environment and business requirements.

Windows Application Development FAQs

Straight answers to the questions that matter before you build.

Windows application development is the design and development of software built to run within Microsoft Windows environments.

Applications can range from internal desktop tools and operational systems to complex enterprise applications connected to databases, cloud services and other business platforms.

We can develop custom Windows applications around specific business, operational and technology requirements.

These can include internal business tools, workflow applications, data-driven desktop applications, enterprise systems, administrative applications and applications that integrate with existing databases, cloud platforms and business systems.

Yes.

iSolve Mobility develops bespoke applications around your users, business processes, data and existing technology environment rather than forcing requirements into a predefined software product.

Yes.

The first stage of application development can be used to understand the business problem, users, processes, existing systems and technical requirements before determining the most appropriate solution and development approach.

Yes.

An existing application can be assessed to determine whether the best approach is to maintain, extend, modernise or replace it.

This can include improving the user interface, application architecture, databases, integrations, deployment, security and cloud connectivity while retaining valuable existing functionality.

Our Microsoft technology capability includes C#, ASP.NET, .NET, Azure, Azure DevOps, Power Apps, Power Automate, SharePoint, Dataverse, SQL Server, Azure SQL and Microsoft Fabric.

The technologies used depend on the application requirements, existing environment and long-term architecture.

Microsoft Windows applications can be developed using technologies such as C#, .NET and related Microsoft development frameworks.

The appropriate technology is selected according to the type of application, its existing architecture, integration requirements, performance requirements and future roadmap.

Yes.

Windows applications can be integrated with databases, APIs and existing enterprise platforms so information and workflows can move between systems rather than remaining in disconnected applications.

Integration requirements are assessed as part of the application’s architecture and development scope.

Yes.

Azure forms part of iSolve Mobility’s Microsoft technology capability and can be used alongside application development for cloud infrastructure, databases, identity, integrations, data processing and other cloud services.

Yes.

Depending on the requirements, applications can work with Microsoft services including SharePoint, Teams, OneDrive and Microsoft Power Platform.

Yes.

SQL development, SQL Server administration, Azure SQL and Azure Managed SQL form part of iSolve Mobility’s Microsoft capability.

Applications can be designed to work with existing databases or new data environments depending on the project requirements.

Yes.

iSolve Mobility provides low-code application development using Microsoft Power Apps and intelligent automation using Microsoft Power Automate.

Power Platform can be used independently or alongside custom Microsoft application development where more complex functionality or integrations are required.

Microsoft Power Apps can be used to create applications for business processes such as CRM, field services, inventory management, expense reporting, approvals, operational workflows and internal business tools.

Whether Power Apps or custom development is the better approach depends on the complexity, integrations, scale and long-term requirements of the application.

In the right use case, Power Apps can reduce the amount of custom development required and accelerate delivery.

For more complex applications, however, custom development or a combination of Power Platform and traditional Microsoft development may provide a more suitable long-term solution.

Power Apps is built within the Microsoft cloud ecosystem and supports capabilities such as identity management, access controls and role-based permissions.

Additional security and governance requirements should be defined according to the organisation’s data, users, systems and compliance requirements.

Security requirements are considered as part of application architecture, development, integration and deployment.

The specific controls required depend on factors such as the data being processed, user roles, authentication requirements, integrations, infrastructure and regulatory environment.

Application architecture is designed around current requirements while considering expected growth, future integrations and changing business needs.

Using established Microsoft technologies, structured application architecture and appropriate cloud services can make applications easier to maintain, extend and scale over time.

Yes.

Testing forms part of iSolve Mobility’s application delivery and quality framework.

Applications are tested against agreed functional and technical requirements before implementation, with the level and type of testing determined by the complexity and risk profile of the solution.

Development time depends on the application’s scope, complexity, number of features, integrations, existing systems and technical requirements.

A relatively focused application may be delivered substantially faster than a complex enterprise application involving multiple systems, user roles, data sources and security requirements.

The project scope and delivery plan are defined before development begins.

The cost depends on the application’s complexity, functionality, integrations, architecture, development effort and ongoing support requirements.

Assessing the requirements first allows the project to be scoped properly and the most appropriate development approach to be recommended.

A cross-platform application is designed to operate across more than one operating system or device environment rather than being developed exclusively for a single platform.

Whether native Windows or cross-platform development is appropriate depends on the users, required functionality, performance requirements and devices that need to be supported.

iSolve Mobility has experience with both Agile and Waterfall methodologies and can work within a client’s preferred delivery model.

Where appropriate, Agile supports iterative development, regular client visibility and earlier feedback throughout the project.

The final deliverables depend on the agreed project scope and can include the completed application, integrations, deployment components and associated technical documentation required for implementation and ongoing support.

Specific deliverables should be defined as part of the project scope before development begins.

Yes.

iSolve Mobility’s application delivery and quality framework covers design, development, testing and implementation as well as ongoing maintenance and support.

This can include bug fixes, security and compatibility updates, performance improvements, new features and changes required as business or technology requirements evolve.

The appropriate measures depend on why the application is being developed.

These can include reduced manual work, improved productivity, faster processes, fewer errors, better system integration, improved access to information, reduced operating costs and better user experiences.

Defining these outcomes during discovery helps ensure the application is designed around measurable business requirements.

Windows application development is suited to organisations that need software tailored to specific business processes, users, systems or technology environments.

This can include organisations replacing legacy applications, developing internal operational tools, integrating disconnected systems or building enterprise applications that cannot be adequately supported by off-the-shelf software.

Look beyond development capability alone.

Consider the company’s Microsoft technology experience, understanding of enterprise systems, integration capability, approach to security and quality assurance, ability to support existing applications, delivery methodology and capacity to provide ongoing support after launch.

The right development partner should be able to understand the business problem as well as the technology required to solve it.