Kotlin App Development Company

Want to build apps like Pinterest and Netflix? We deliver mobile app solutions for Kotlin app development companies to give your application robustness, speed, and safety building Android apps to deliver end-to-end solutions that escalate growth.

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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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Kotlin app development services we provide

Web development

We are experts in creating dependable, secure, and quick web apps that help you achieve your business goals in the most efficient way possible and to make back-end web development and front-end apps easier.

Android apps development using Kotlin

We provide the construction of Kotlin-based Android applications that cover the functionality of our client's demand having to our extensive competence in designing mobile software solutions.

Cross-platform development

Our experienced specialists create a single codebase for sharing code across mobile platforms with Kotlin to speed up the application development life cycle instead of being platform-specific.

Migration to Kotlin

Our development team can add new Kotlin-based functionality to your Android app without having to modify the existing code. We provide our experience to upgrade versions or transfer your online and mobile apps in a seamless and trouble-free manner.

Other Kotlin services we provide:
  • • Custom Kotlin app development
  • • Kotlin app optimization
  • • Kotlin migration
  • • Kotlin app testing
  • • Kotlin app support and maintenance

Why is Relevant a good choice for Kotlin app development services?


Agile methodology

Our agile approach to Kotlin app development services enables you to manage resources and teams with the flexibility required by your project.


Dedicated project manager

At first, our PM is always available to provide project updates in kotlin app development and oversee upcoming assignments. Simply notify them, and they will take care of it.


80% employee retention rate

We provide jobs to our staff that they excel at and opportunities to grow with us to make your kotlin app development cutting-edge and better performing.


9/10 client satisfaction score

Our service is more than just effective code; it also contains timely communication, project-first focus, and excellent working ethics. Our clients are fully delighted with their decision to work with us.


92% of senior and middle engineers

We hire the best people worldwide to work on your project to get the skills and understanding needed to create a visually appealing and online solid solution.


Risk handling

We are continually improving risk management strategies, tools, and approaches that distinguish us as a trustworthy partner, not just a provider. Explore our portfolio and review it!

Success cases

Developing a SaaS platform that assists UK homebuyers
View case
My Theory Test app by James May
Building #1 driving app in the UK
View case

Engagement models

Decide which model best suits your project


What type of businesses do you work with?

We work with businesses of any type, from startups to established companies with hundreds of employees that benefits people. Also, your location doesn’t play any role as we provide oil and gas software solutions and others worldwide. No matter how big or not your company is, for us it is vital to be interested in your values and product idea.

Who owns the code authority after project completion?

We don’t own your code after launching the product as the complete authority of the code goes to the business owner.

What do you do to keep my data secure? Do we sign an NDA for my project?

Yes, non-disclosure agreements are an essential legal framework to protect sensitive and confidential information from being made available by the recipient of that information. By signing an NDA, we promise not to divulge or release valuable information our clients share.

What pricing model do you offer?

We have a single pricing model based on two price-formation factors: time and material. We charge by the hour and bill every two weeks.

When can we get started?

After you contact our project managers, we compile the brief and schedule a consultation call to get more information and specifics. We may sign an NDA agreement with you to ensure that we are accountable for the information you disclose. Now we're ready to make an offer, devise a development strategy, construct the toolkit, and begin to work.

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

Let's talk about your engineering needs.

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