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Bespoke Web Application Development Services

Blueberry is a leading bespoke web application development company with over 20 years of experience, offering customised and interactive web technologies to deliver a sophisticated and user-friendly experience.

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Web Application Development

Web App Development Overview

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A ‘web application development’ is a business system or application delivered over the Web. It might be an internal expenses application used only within a company (intranet); a reseller purchasing application used with partners (extranet); or an online system available to members of the public like an eBay or a holiday cottage search site.

Web applications utilise the interactive nature of websites to provide customised and interactive technologies; they deliver a more sophisticated and interactive user experience via a web browser than conventional websites.

In many cases, the Web application will be a customer-facing interactive website that enables you to do business on the Web. A typical example of a well-known Web application is eBay: although eBay includes some e-commerce elements (such as the transfer of funds between accounts), it is primarily a Web application due to the interactivity between its users in the form of auctioning and feedback.

Web applications are less likely to be built on top of third-party e-commerce or CMS platforms and are instead normally written from scratch. The fact that Web applications are bespoke software development projects essentially means that the sky’s the limit in terms of what they can be made to do.

If you have special requirements (such as a requirement for integration with another system) and you’d like your project to be Web-based, you’re probably going to need a web application.

Web Application Technologies

Web app development can utilise a range of technologies, depending on the requirements of the particular application. These include: AJAX (Asynchronous JavaScript and XML), ASP.NET Core (.NET 6/7/8+), Blazor, Razor Pages, Minimal APIs, CSS (Cascading Style Sheets), HTML5 (HyperText Markup Language), Java, JavaScript, Node.js, Python, Ruby, PHP, and modern Java frameworks such as Spring Boot, Micronaut, or Quarkus – the list goes on.

Some of these are client-side technologies (such as HTML5, CSS, JavaScript, and AJAX), while others are server-side technologies (such as ASP.NET Core, Node.js, Python, or PHP).

Because web applications are far more interactive than static websites, they require additional client-side technology beyond just HTML. Today, this often includes JavaScript frameworks like React, Vue, or Svelte, along with CSS and HTML5 for layout and styling.

In general:

  • HTML, CSS, JavaScript, and AJAX are used for the user interface.
  • HTML5 and modern JavaScript frameworks deliver rich, app-like experiences.
  • Server-side technologies such as ASP.NET Core, Node.js, Python, or PHP handle business logic and backend services.
  • Databases provide reliable storage for everything from user data to analytics.

Blueberry can work with any of these technologies, depending on your needs. If you’re interested in the development technologies and techniques we use, take a look at our Web Software Development Technologies page – you’ll find unbiased information on JavaScript, modern frameworks, HTML5, ASP.NET Core vs. PHP & Drupal, and Databases.

Blueberry’s Web Application Development Services

Web Application Expertise

  • We have been providing custom web application development services for over 20 years.
  • We have strong expertise with Microsoft IIS and ASP.NET – the leading Microsoft Platform for Website delivery.
  • We are experts in MS SQL Server, used on the server side to manage the database.
  • We also have strong expertise in JavaScript and AJAX – technologies necessary to deliver the interactivity required by Website users.

Web Application Hosting Platforms

Blueberry primarily uses Microsoft tools for web application development, which include ASP.NET Core with modern hosting options. While IIS (Internet Information Services) is still available, it is increasingly being replaced by Kestrel (the cross-platform web server built into .NET) and by cloud-native solutions such as Azure App Service, NGINX, or YARP for reverse proxying. Many modern deployments also use containerized applications with Docker and Kubernetes, rather than relying on traditional IIS-based hosting.

The back-end database is typically Microsoft SQL Server, with system code written in C#, a powerful, modern language that supports high-performance enterprise applications.

The major alternative to Microsoft technologies is the Linux ecosystem. Traditionally, this was represented by the LAMP stack – Linux, Apache, MySQL, PHP. While LAMP is still functional and widely understood, it has largely been replaced or extended by more modern stacks, such as:

  • LEMP – Linux, Nginx, MySQL/MariaDB, PHP/Python – with Nginx offering better speed and scalability than Apache for modern workloads.
  • MEAN/MERN – MongoDB, Express.js, Angular/React, Node.js – enabling full-stack JavaScript applications where the same language runs across client and server.
  • Serverless & JAMstack – using frameworks like Next.js, deployment platforms like Vercel, cloud functions such as AWS Lambda, and APIs/GraphQL for data access. These approaches are popular for building scalable, static-plus-dynamic hybrid applications.

We recognise the strengths of Linux-based platforms – particularly cost efficiency (with many components being open-source) and flexibility – and see excellent systems being developed on these stacks. However, most of our customers continue to rely on Microsoft technologies, and we are confident in delivering robust, future-proof solutions on that foundation.

The Benefits of Using Web Applications

Web applications provide business and customers with a huge range of benefits compared to non-web based applications:

  • By opting to launch your project as a web application (as opposed to a desktop application), you immediately make it accessible to a mass audience – an audience that is simply defined as people with Internet access and a modern Internet browser.
  • Web applications are much easier to update than their desktop counterparts. To update a web application, the amendments only need to be made to one place: the server on which the web application runs. To update a desktop application, however, is a much more complicated task: patches need to be developed, tested and finally distributed to each and every one of the end users of the application.
  • Relative to conventional websites, a web application is more likely to score better on the basis of receiving return visitors. The logic is simple: a web application is more interactive than a brochure site, so users are more likely to return to use it a second time and to check for updates.

Unlike desktop applications which need to be installed on every user’s machine, Web applications are accessible by anyone with an Internet connection. In the same way as the Internet has revolutionised the way we shop, it’s also revolutionised the way we interact with computers.

If it’s possible to have your service or product run as a web application rather than a desktop application, it makes sense to do so: the Web makes it cheaper and faster to reach a mass audience than the traditional method of developing, testing, packaging and distributing software to be installed on an individual user’s computer.

See examples of web application developments we’ve completed for our clients:

Case Studies

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