Mobile Testing Services

Get the user’s view of the app across any device, network, or browser with our functionality, security, compatibility, and usability mobile application testing 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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Application testing services we provide

Android Testing Services

Our QA team builds the testing strategies around your development plan and chooses project-specific tools to ensure continuous improvement of your Android app at every development lifecycle stage.

iOS App Testing Services

Get detailed testing reports on every performance aspect of your iOS app, and make fact-based decisions to optimize your app and provide your clients with the mobile experience they expect.

Mobile Manual Testing

We use various emulators, simulators, and other tools in the testing environment to mimic the real user and manually assess the app’s functionality and performance while focusing on UI/UX.

Hardware Testing App

We run hardware tests to assess the performance of device sensors and hardware components for you to understand the device possibilities and limitations and predict app compatibility.

Usability Testing Mobile App

Our QA specialists involve real users to test your app’s usability. We prepare the assessment documentation and collect feedback to identify areas that need improvement, optimization, or upgrade.

Load and Performance Testing

Our load and performance application testing services allow you to estimate the server response time under heavy user flow, define resource utilization, and see optimization needs and opportunities.

We also provide:
  • • Machine Learning & AI Development Services
  • • DevSecOps Services
  • • Software Product Discovery Services
  • • Web Development Services
  • • Mobile Development Services
  • • SaaS Development Services
  • • Quality Assurance Services
  • • Flutter App Development Services
  • • Vue.js Development Services
  • • Angular Development Services
  • • React Native Development Services

Why is Relevant a good choice for app testing services?


Agile methodology

We offer our app testing services for developing, integrating, or updating stages to help you continuously evaluate and improve the app’s functionality.


Dedicated project manager

An assigned PR will oversee the testing process from planning through reporting and update you on project progress, to-do list, and completed tasks.


80% employee retention rate

Relevant has assembled QA teams of high-skilled specialists that enjoy various in-house opportunities for career advancement and personal growth.


9/10 client satisfaction score

90% of our clients are satisfied with our mobile testing services, so they recommend our company and hire our engineers again for other projects.


92% of senior and middle engineers

Our mobile app testing company hires testers with hands-on experience in automated and manual testing to guarantee clients exceptional service quality.


Risk handling

We use platform-specific test management tools to ensure smooth testing processes at every stage and identify at-risk areas to work with further.

Success cases

Optimizing the service industry's tipping process
United States
View case
My Theory Test app by James May
Building #1 driving app in the UK
View case
Developing a SaaS platform that assists UK homebuyers
View case


How does mobile testing work?

A mobile app testing service is the process of testing the applications designed and produced for mobile devices to check their performance, functionality, usability, compatibility, and consistency. The testing is usually involved in every development stage (especially for the teams following the agile approach), or it can be arranged before production. Mobile app testing aims to identify errors in code, integration, architecture, network interaction, and design before production to ensure impeccable end-user experience, high engagement, and compliance with the app market requirements.

Why do businesses need mobile app testing services?

Before publishing the app on the app store or integrating it with the website, companies need to ensure that every feature works perfectly on various devices. Testing also allows us to assess the quality of user experience and point at what should be changed to improve the disadvantages before the user notices it. Our testing team does exactly that. Whether it's a testing of the whole app or integration testing of a newly-added tool or feature, our testers will ensure that your app is ready for use.

What are the stages of mobile testing?

Our mobile testing company identifies 6 major testing stages: requirement analysis, test planning, test design, testing environment setup, test execution, and reporting. We follow this 6-step approach for functionality, real-environment conditions, and non-functional testing to analyze the app’s performance and its impact on the users and the development process down the line.

How much time does it take to test an app?

The testing project duration depends on various factors, such as test type (manual, automated, combined), app’s complexity, and peculiarities (physical or cloud server). It also depends on what needs to be tested (functionality, hardware compatibility, security, usability, interoperability, etc.).  Generally, the testing process can take from 3 weeks to 2-3 months.

What are the challenges with app testing?

There are plenty of challenges that the app testing company should consider and navigate through to run a quality test. For example, device fragmentation is one of them (the number of devices and OS versions is plenty, which is why it may take a lot of time). Plus, they have different screen resolutions, so the more models and devices are produced, the more tests need to be run. 

Next, different types of apps (native, cross-platform, web, PWA) should be tested separately for the same performance indicators.  For example, if you develop native apps for both Android and iOS, be ready to double the budget.

The testing team should also keep in mind that they’re working with high-speed Internet, which isn’t always the case with the end users. This is why they need to understand what would be resource distribution and performance in not-so-perfect conditions. It leads us to another challenge: no emulators give the true feel of the app functionality under real-life conditions. This is why the team should run UI/UX tests with real users and collect as detailed feedback as possible.

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