Relevant
  1. Relevant Software
  2. Services
  3. Custom application development

Custom web application development services

Build the solution you’ve been striving for with Relevant — a trusted custom web application development company with over 100 successful web application releases under its belt. With over 10+ years of experience in custom web development, we help companies design industry-specific web solutions that support their operations and drive revenue.

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  • iso-27001
  • gdpr-compliant
  • hipaa-compliant
  • fortune-500
  • clutch-3
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Our custom web application development services

  • Web development consulting
  • Full-cycle web application development
  • Backend and frontend development
  • UX/UI design
  • Progressive web apps development
  • Enterprise web solutions
  • Web portal development
  • SaaS application development
  • Cloud-based web application development
  • Cross-platform web app development
  • Mobile-friendly web development
  • Web application modernization
  • Web application support and maintenance
  • API development and integration
  • Web development consulting
  • Full-cycle web application development
  • Backend and frontend development
  • UX/UI design
  • Progressive web apps development
  • Enterprise web solutions
  • Web portal development
  • SaaS application development
  • Cloud-based web application development
  • Cross-platform web app development
  • Mobile-friendly web development
  • Web application modernization
  • Web application support and maintenance
  • API development and integration
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Web development consulting

Our web development consulting involves expert advising on the technical and design aspects of your web app (architecture, framework, UI, UX) to guarantee your solution perfectly blends functionality and ROI. Take advantage of our web applications development services to do everything right from the first time and save from redesigning and costly rework.

Web solutions for your industry

  • Healthcare
  • FinTech
  • Retail
  • Real estate
  • Logistics
  • Agriculture
  • Media & entertainment
  • Travel
  • Energy
  • Oil & gas
  • Construction
  • Insurance
  • Manufacturing
  • Automotive
Deliver high-quality, responsive web apps that keep users engaged and your business ahead.
Partner with Relevant
Paul Carse, CTO and Co-founder of Life Moments, UK

Reasons to outsource web application development

Accelerated time-to-market

Client-focused approach

Cross-functional teams

Robust code

Industry expertise

Scalability on demand

Access to cutting-edge technologies

Cost efficiency

Security and compliance

Success stories

Trusted by over 200 satisfied clients

Partner with us to build custom web applications that solve real business challenges, deliver exceptional user experiences, and grow with your goals.

Let’s collaborate

Our core tech stack

Backend

  • Node.JS
    Node.JS
  • Nest.JS
    Nest.JS
  • Salesforce
    Salesforce
  • Java
    Java
  • Python
    Python
  • .NET
    .NET
  • PHP
    PHP
  • TypeScript
    TypeScript

Mobile

  • Swift
    Swift
  • Kotlin
    Kotlin
  • React Native
    React Native

Frontend

  • Vue.JS
    Vue.JS
  • React
    React
  • Next.JS
    Next.JS
  • TypeScript
    TypeScript
  • angular
    Angular

Cloud

  • GCP
    GCP
  • Azure
    Azure
  • AWS
    AWS
  • Vercel
    Vercel

Why cooperate with our custom web development company?

Comprehensive in-house web services
Broad technological expertise
Top-tier tech talents
Award-winning partnerships
On-time, on-budget delivery
Stable teams for long-term success

What clients are saying about Relevant

4.9 is our Clutch
average

Custom web application
development process

  1. Discovery and requirements gathering
    01
    Discovery and requirements gathering

    Our collaboration starts with a discovery phase where we gather your project requirements, learn about your business objectives, and define the scope of work.

  2. Architecture and technical planning
    02
    Architecture and technical planning

    Our experts design a scalable and robust technical architecture and select the right tools and frameworks to align with your project’s goals and future growth

  3. UX/UI design and prototyping
    03
    UX/UI design and prototyping

    We design intuitive, visually engaging prototypes to deliver seamless user experiences while ensuring your web application is both functional and aesthetically pleasing.

  4. Backend and frontend development
    04
    Backend and frontend development

    Our developers bring your application to life, building a secure backend and dynamic frontend to create a responsive and reliable web solution.

  5. Integration of APIs and third-party tools
    05
    Integration of APIs and third-party tools

    We seamlessly integrate APIs and third-party tools to enrich your platform’s functionality, expand capabilities, and create a more robust and integrated solution.

  6. Quality assurance and testing
    06
    Quality assurance and testing

    Our QA team tests your application with special attention to detail to identify and resolve bugs, ensuring flawless performance, security, and a seamless user experience.

  7. Deployment and launch
    07
    Deployment and launch

    We manage every aspect of deployment, ensuring your web application is launched smoothly, on time, and ready to make an impact.

  8. Ongoing support and maintenance
    08
    Ongoing support and maintenance

    Our team provides continuous support and maintenance to keep your application secure, updated, and performing at its best over time.

  9. Performance monitoring and optimization
    09
    Performance monitoring and optimization

    We monitor your application performance 24/7, determine what can be improved, and optimize operations to enhance speed, efficiency, and user experience.

Insights from our experts

























Questions you may have

Which businesses gain the most from custom web application development?
How much time does it usually take to create a custom web app?
How do you design custom web apps to be secure and scalable?
Do you offer post-launch support services?
Is it possible to integrate custom web apps with current software and external services?

Let’s talk about your project

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