Web App Development Services

In need of web app development services? The mega-sup team boasts over two decades of experience in creating web application development solutions for businesses across various industries. We are excited to offer our expertise to support your project.

Custom Web Application Development Services

We offer an extensive array of custom web application development services, spanning from initial business analysis and UI/UX design to comprehensive front-end and back-end development, rigorous quality assurance testing, and continuous ongoing support maintenance and support.

The skilled architects and engineers at mega-sup have a wealth of experience in developing secure, scalable web applications of varying types and complexities:
  • Progressive web apps
  • Cross-platform apps
  • Single Page Applications (SPAs)
  • Web portals
  • ERP systems
  • CRM systems

Front-End and Back-End Development

Front-End Web Application Development


With over 15 years of experience and a team of more than 170 Javascript developers, mega-sup offers top-tier front-end web development solutions. Our team has successfully executed over 50 projects for clients around the world. Our UI/UX engineers continually stay updated on emerging technologies and innovative approaches. To expedite development, we utilize JavaScript frameworks and libraries such as Angular, React JS, and Vue.JS.

Back-End Development


mega-sup's back-end development team comprises over 250 full-time engineers serving diverse industries. Over the past 20 years, we've completed more than 600 projects for 300+ global customers. Our team has also created over 30 proprietary products. We specialize in crafting customized solutions using various back-end programming languages, libraries, and frameworks like Java, PHP, Python, .Net, and C++, among others.

Key Web Technologies and Frameworks


As a company specializing in the development of custom web applications, we provide an extensive array of technologies aimed at delivering resilient web application solutions. In addition to core languages like Java, .Net, and PHP, we leverage innovative frameworks to enhance our services. By skillfully combining technology stacks, we develop apps that provide value to clients and establish strong online presences for businesses.

Getting Started with Us

Explore Engagement Models

Custom Web Applications We Develop

The experienced engineers at mega-sup have accumulated extensive knowledge while developing custom web application solutions. Our solutions streamline company processes, workflows, and documentation. Our deep expertise stems from the creation of ERP and CRM systems for startups and enterprises. In addition to building secure, scalable web solutions, we excel in managing migrations and upgrades, even for complex cases.

Progressive Web Apps (PWAs)

Our adept web developers specialize in crafting cost-effective progressive web apps integrated with expansive ecosystems, ensuring seamless operation across various devices. We employ technologies like ReactJS, VueJS, AngularJS, HTML5, and JavaScript to create fast, reliable, and engaging web apps.

Single Page Applications (SPAs)

mega-sup's skilled web app team provides comprehensive SPA development services, encompassing UI/UX design, front-end and back-end development, thorough testing, efficient deployment, and ongoing support.

Tailored E-commerce Solutions

We're capable of developing bespoke e-commerce solutions from scratch or based on renowned web service platforms such as Magento, Salesforce, and various CMS systems (WordPress, Drupal, Joomla, etc.). Our expertise extends to companies of all sizes, from small websites to expansive enterprise portals.

Web Portals and Enterprise Systems

Our web development team specializes in creating dependable web portals tailored to client requirements. Whether B2B, B2C, media, or e-learning portals, we craft scalable, high-performance platforms integrated with third-party systems and tools.

Leveraging SAP and Salesforce Integration

Our web application developers bring extensive experience in working with ERP systems, including SAP. We ensure seamless integration of custom apps with SAP/R3 systems, optimizing business processes for efficiency. Moreover, our proficiency in integrating web applications with Salesforce allows us to provide consultation and integration services for CRM-based solutions.

Client Testimonials

Our client reviews underscore our commitment to excellence:

"They rank among the finest companies I've collaborated with"

We delivered a high-quality platform on time, thanks to our agile methodology and skilled team.

"Exemplary work ethic and quality."

mega-sup's efforts improved our website's efficiency and productivity, highlighting their professionalism and dedication.

"Enthusiastic expertise."

Our web application exceeded expectations, and mega-sup's ongoing support and issue resolution were exceptional.

"Unmatched quality of work."

Our ongoing partnership with mega-sup consistently delivers satisfactory results, fueled by effective communication and commitment.

"Exceptional technical and communication skills."

The successful development met internal and external expectations, thanks to mega-sup's creativity and effective communication.

Why Choose mega-sup?

As a leading web development company in Eastern Europe, mega-sup boasts a team of seasoned professionals ready to elevate your online presence. Our ISO 27001 and ISO 9001 certifications underscore our commitment to best practices in customer projects. We're recognized as a top web development company for compelling reasons:

Frequently Asked Questions

Starting a new project and have a few questions? Some of the most frequently asked questions and answers about custom web application development are listed below.

Determining the best language is nuanced, as each language serves distinct purposes. For web development, prevalent programming languages include Java, PHP, and JavaScript. The selection of a technology stack hinges on your specific business requisites.

The duration varies for each project, shaped by its unique demands. The development timeline hinges on multiple factors: project complexity, features, technologies, frameworks, as well as the expertise and experience of the development team. Our development team can provide an estimate upon review of your project specifications. Kindly share your project requirements, and our experts will furnish a comprehensive estimate.

Defining an exact cost proves intricate due to several influencing variables. Firstly, differing hourly rates across web development companies play a role. Secondly, the overall cost depends on aspects such as project scope, complexity, features, functionality, design intricacies, and the geographical location of the development team. Feel free to furnish your project prerequisites to our specialists to ascertain the precise cost for your project.

Choosing the right technology stack can be daunting without a technical background, given the intricate pros and cons of each programming language and their specific applications. By entrusting your project to a web development company, you secure the expertise required to adeptly select an appropriate technology stack tailored to your project's needs.