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Non-Functional Testing Services

Great apps demand more than features alone. Let's join forces to test, optimize and future-proof your applications with non-functional testing that confirms your solutions works like Swiss watch.

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Join the group of Startups & Fortune 500 companies that care about quality.

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Detect issues and inconsistencies

Performing non-functional testing requires diverse expertise, tools and perspectives. With proven testing methods and detailed insights, we can help you deliver the experiences users value.

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Find the upper limits of your solution with full-scale performance testing. It includes load testing with hundreds and thousands of concurrent users supplemented with network simulation, battery & data usage testing, audio quality analysis, and other aspects.

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Testing levels

Non-functional testing from day one

In contrast to functional testing, the importance of non-functional testing increases with each stage. Nevertheless, it's important to implement non-functional testing into your pipeline.

Integration testing

During the integration testing phase, non-functional testing is utilized for simple performance and compatibility tests of integrated systems to avoid issues down the line.

System testing

When all the individual components are integrated together, it's time to put a bigger focus on non-functional testing, testing the app's security, stability, compatibility, and more.

User Acceptance testing

The very last step is to test the application from the end-user perspective. That involves usability testing, accessibility testing, security testing, and performance testing with different surrounding conditions.

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Platforms covered

Equal quality standards for all platforms

Ensure your application delivers smooth and quality user experiences for all of your users, no matter how they access and use your solution. Let it be web, mobile, desktop, VR, or cross-platform, we cover them all.

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FAQ

Most popular questions answered

Non-functional testing refers to testing aspects of a software application that aren't related to specific features or functionality, but rather to quality attributes of the system. While functional testing asks "does this feature work as intended?", non-functional testing asks "how well does the system work?" – covering areas like performance (speed, scalability), security (resistance to threats), usability (ease of use), reliability/stability (does it crash or error under stress), and compatibility (does it work in different environments).
Functional testing focuses on what the system does – validating outputs against inputs, and ensuring each user requirement or use case behaves correctly. Non-functional testing, on the other hand, focuses on how the system performs and behaves under various conditions. Another key difference is that functional tests are often binary (pass/fail for a scenario), whereas non-functional tests might result in measurements that are evaluated against benchmarks (like "response time should be under 2 seconds").
Non-functional qualities often make the difference between a product that users love and one they abandon. Users might not explicitly ask "is this app scalable?" but they will certainly notice if the app is slow, crashes, or is hard to use. For example, if your app becomes sluggish under peak usage (poor performance) or if a server hiccup logs everyone out (poor reliability), customers get frustrated. Non-functional testing is critical because it ensures the app delivers a quality experience – it's reliable, responsive, secure, and user-friendly, all of which are vital for user satisfaction, retention, and overall success in the market.
Non-functional testing is broad. Key aspects include performance testing, security testing, usability testing, reliability/stress testing, scalability testing, compatibility testing, accessibility testing, and others.
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Test your solution better. Faster. Together.

Test your solution faster and more thoroughly by working with quality assurance experts who will help you develop a testing solution tailored to your needs.

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