Mobile App Development Services

Since 2014 our international development company has developed awesome mobile apps for App Store and Google Play. Get successful products that delight millions with our mobile app development services!

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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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Key mobile app development services you’ll get

Android Applications Development

We develop Android apps using Kotlin or Java via Google’s development tools and guidelines. Unleash the full potential of Google's platform to deliver your product to 2 billion Android users worldwide!

iOS Application Development

Our iOS development team offers a full spectrum of services for different domains and devices, including iPhone, iPad, Apple Watch, App Clips, and Apple TV development. Make your business ideas thrive with our iOS app development company.

Cross-platform Application Development

We build cross-platform apps that run on iOS and Android through a single code base to expand your reach, decrease risks and maximize velocity. Utilize the best features of each ecosystem while delivering a consistent mobile experience across all devices.

Application Design and Modernization

We create exceptional apps with attractive design, intuitive interface, and user-friendly experience. Also, our mobile developers can improve performance and bandwidth, update UX/UI, and add new features to existing mobile apps. Concentrate on your business while we process reliable mobile app development!

Other mobile app development services we provide:

• Mobile Server-Side Development
• Native and PWA solutions
• Mobile App Porting
• UI/UX App Design
• Consulting and Prototyping
• Automated QA and Testing
• Custom Mobile App Development

• Embedded Android & AOSP Customizations
• Augmented Reality for Mobile Development
• Maintenance and Post-Warranty Support
• Wearable App Development
• HTML5 Mobile Development
• Architectural Solutions for Mobile Apps

Our tech stack

Node.js

React.js and React Native

Angular

Vue.js

TypeScript

JavaScript

PHP

Python

Java

Flutter

Kotlin

Swift

.NET

Objective-C

AWS

Google Cloud

Infrastructure

AWS

Google Cloud

Microsoft Azure

IBM cloud

Heroku

Kubernetes

Docker

Why Relevant for Mobile App Development?

Rich talent pool

Our mobile app development company has senior-level engineers and designers with a comprehensive tech stack to make any of your ideas come alive.

Efficient resource management

When you reach out to us for mobile app development services, we develop the optimal solution according to your business goals and budget.

Agile approach

We follow agile best practices and use the latest technology to continuously improve the product, reduce time to market and achieve the highest quality standards.

Scalable products

Leaving space for improvement is essential when it comes to application development. Our mobile app development company helps you create products that are easy to scale and maintain.

Unique visual design

What can grab users' focus better than an attractive user interface? We create apps with the UI/UX best practices to outpace your competitors.

Dedicated project manager

Our dedicated project manager will be a perfect mediator between our developers and you. Your ideas will be precisely handled to become a decent piece of software.

Our clients’ successes

My Theory Test app by James May

Building #1 driving app in the UK

Edtech

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Össur

Facilitating the ordering of custom prostheses and orthotics

Healthcare

Iceland

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TableZ

Improving a restaurant booking system

Hospitality

Qatar

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Engagement models

Decide which model best suits your project

Dedicated team

Extend your staff with remote specialists that are fully under your control. We take care of their administration and professional development.

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Product development

Bring your idea and commission a product. We handle everything from business analysis through the development and the product launch.

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FAQ

Why Relevant?

Looking for a trusted provider to build a mobile application and grow your business? Congratulations, as you have already found it.

First, our company is trusted by clients from 25 countries worldwide. Satisfied with our mobile app development services, they come back to us with new ideas to grow their business.

Next, our deep niche analysis and extensive technical skills allow us to create feature-rich products with amazing designs.

Finally, our engagement models will enable us to develop software at reasonable prices, pre-negotiated and discussed with the client.

What size companies do you work with?

We build amazing software for innovative start-ups, fast-growing enterprises, and Fortune 100 companies.

Do we sign an NDA document for my mobile app development project?

Yes, we do. As a mobile app development company, we always sign an NDA to safeguard your business's private data, project details, and intellectual property. Protecting clients' privacy and their trade secrets is our top priority.

How do I track the progress of my project?

We use Jira and Slack to track tasks and development progress in mobile app development and other IT outsourcing services.

Can you also design my app?

Yes, we are a full-cycle design and development company. We apply a design-driven approach to building modern mobile apps and websites. Our team has a strong pool of design and development professionals.

Which industries do Relevant have experience building mobile apps for?

We have created mobile solutions for various industries, including retail, real estate, fintech, and construction.

What is custom mobile app development?

Custom app development is the process of designing, developing, and releasing a unique mobile app based on the specific business, technical and design requirements. Unlike off-the-shelf solutions, custom applications are created to meet specific customer needs in a particular way.

How long does it take to develop a mobile app?

It depends on the requirements and resources available. According to BusinessOfApps, on the average mobile app development takes:

1-3 months for MVP with a simple design and a back-end and basic functionality;
4-8 months for mandatory functions, advanced UX/UI, API integrations, and server performance;
9+ months for special features and additional functionality.

Each phase requires a different amount of time to complete, but rough estimates are:

Gathering project requirements: 1-2 weeks
Analyzing needs and selecting technologies: 4-5 weeks
Design and prototyping: 6-12 weeks
Coding: 6-12 weeks
Releasing to app stores: 1-2 weeks

Any improvements to the mobile app take additional time, so keep in mind that the development process doesn’t end immediately after the release.

What technologies should I choose for mobile app development?

The tech stack for your mobile app project is highly dependent on your demands, the platform, and the type of mobile development. If you want to make a mobile app that runs smoothly on Android and iOS, we recommend choosing React Native or Flutter as your core technologies.

What should I check for when hiring a mobile app development company?

When choosing a mobile app development company to work with, you should address these areas:

Company's information. Look at their public profile (website and social media pages) to get a greater insight into the technical expertise and services.
Details about the team. Gain information about the team’s size, experience, and technical specializations.
Clients feedback. Request the company’s portfolio and clients’ testimonials.
Communication process. Ask about the communication tools used and ascertain whether the company is fluent in English.
Information about software development life cycle. Request information about the methodologies and frameworks used during project development and whether support and maintenance are provided post-launch.
Payment and agreements. Discuss working conditions, expectations, and rates.

Mobile App Development Services

Client testimonials