Web and Mobile Development Company

Offer your product to more clients worldwide with a reliable and secure app. Our web and mobile app development engineers will make your business available on any device.

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Client testimonials

«We now have a core team of engineers at Relevant who work for us full-time and are supplemented by 4 or 5 engineers with different skillsets when and if required.»

Paul Carse
CTO and Co-founder of Life Moments

“Working with you guys has been fantastic. The level of expertise of your development team is as good as the people that we get in the UK. You’ve got a fantastic talent base of programmers. It’s more challenging to find people of that quality in the UK.”

Cassian Harrison
Co-founder of Splink Industries and My Theory Test App by James May
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Mobile web development services we provide

Web Development Services

Our mobile web application development team creates fast, responsive, and appealing native mobile or web apps to move your business closer to the users regardless of the device they use.

Mobile Web Design

Experienced in the best UI/UX practices, our web designers create an unparalleled digital experience for your brand. We make functions work fast, look awesome, and feel amazing for every user on any device.

SaaS App Development Services

We make your cloud services mobile to give your clients freedom to use online and offline. We use top-notch tools, frameworks, technologies, and testing to fit desktop experience in mobile devices.

DevOps as a Service

Our mobile website development company offers cost-effective DevOps as a Service to ensure the production environment’s continuous delivery and integration (CI/CD) and visibility into toolchain activities.

We also provide:
  • • React.js Consulting Services
  • • Node.js Consulting Services
  • • JavaScript Development Services
  • • Custom Software Development Services
  • • Product Development Services
  • • UI/UX Design Services
  • • Cybersecurity Services
  • • DevOps Services
  • • Machine Learning & AI Development Services
  • • Full-Stack Development Services
  • • Vue.js Development Services

Why is Relevant a good choice for mobile web development services?


Agile methodology

We use the agile approach as it allows us to constantly assess, modify, test, and deploy the best tools and practices to maintain your app up-to-date.


Dedicated project manager

Our project managers will oversee, track, and communicate with the team, so you don’t have to. They will also provide you with updates and reports.


80% employee retention rate

Skilled mobile and web app developers are hard to find. At Relevant, we give them everything they need to grow personally and professionally with us.


9/10 client satisfaction score

From pre-development consultation to post-development support, we’re an IT company that puts the quality of service first — and our clients like it.


92% of senior and middle engineers

Your project needs experienced app developers who know how to implement your ideas successfully. We provide you with the best talents in the industry.


Risk handling

Our business analysts help us assess the risks for each project, design emergency plans, and continuously improve risk management practices.

Success cases

My Theory Test app by James May
Building #1 driving app in the UK
View case
Visualizing air quality sensor data in a web dashboard
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Optimizing the service industry's tipping process
United States
View case


Why do businesses need a mobile app?

A mobile app is an opportunity for your business to increase the share of mobile buyers and is a must-have if you want to transform your business. Since the number of mobile users continuously rises globally, having a mobile app means another channel to offer your products or services to more people. But to do so, your app should perform impeccably, provide a pleasant user experience, be highly responsive, easy to use, and safe. Our mobile and web development company is ready to develop one for you.

How long does mobile web development take?

The development type varies from project to project, and we need to analyze a lot of factors before estimating the project duration. It usually takes more time to develop mobile apps, particularly if it’s native development with custom features. The desired functionality will also influence the project duration (if you need any machine learning component, it will take time to collect the required amount of data and train the model). Talk to our web and mobile app development team to see how much time it will take us to build a performance app for your business.

What are the challenges with web development?

As with any development, the biggest challenge is how to create an app that helps achieve business goals, becomes popular with users, and can be easily scaled or modified. We need to avoid layout incompatibility, specifically when it comes to formatting the content on mobile devices. We also need to address the screen size adaptation problem to make sure that web or mobile apps are displayed as designed on every device. The team discusses these issues before development starts to avoid unnecessary costs and work.

How will you keep me updated on the progress of the project?

Our mobile web development agency uses various communication tools and channels to keep the stakeholders updated regularly. We use the Jira project management system that allows task and progress tracking. We also use Slack, emails, and chats to discuss non-sensitive issues. You will also get updates from a dedicated project manager who will be your first point of contact regarding any questions you might have.

What are the security measures you take to keep the app secure and stable?

At Relevant, the web and mobile application development process is guided by the industry requirements regarding how to make the use of apps safe for every stakeholder and user. We also comply with all regulations of the industry that we build your app for. Plus, we develop risk management practices that allow maximum uptime and the fastest response to safety threats.

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Do you know that we helped 200+ companies build web/mobile apps and scale dev teams?

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