Functional testing services
Functional testing that ensures your vision becomes reality.
Minimize business disruption by trusting DeviQA’s 15 years of functional testing experience to identify hidden bugs before they impact end users or customers.
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Why do you need functional testing services?

Thorough software functionality check
By catching the majority of defects before release, functional testing guarantees your software works as intended.
Early bug detection
Functional testing helps identify and resolve defects early on, reducing bug-fixing costs, improving product quality, and streamlining the development process.
Fewer post-release defects
Effective functional testing reduces post-release defects by up to 90%, saving a lot of time and resources.
Higher customer satisfaction
Comprehensive functional testing improves software quality, leading to higher customer satisfaction.

Functional testing services we provide

Based on the specific needs of your project, we come up with different types of functional testing, executing them manually or with the help of automation. Our scope of functional testing services includes the following:
Regression testing
Our aim is to confirm that recent updates or code modifications haven't caused any defects in software functionalities that previously worked well.
Smoke testing
Before getting to comprehensive testing, we check the core app functionalities for critical issues to prevent the wastage of valuable time and resources.
Sanity testing
We execute this brief and focused testing to check whether a particular set of functionalities or software components work as expected after a code change or a minor update.
Integration testing
We pinpoint issues that may arise when different software components are integrated, ensuring seamless data flow and interaction.
System testing
We comprehensively assess software as a whole, checking adherence to predefined functional specifications.
User acceptance testing
We work closely with stakeholders to ensure that the software meets specified criteria and is ready for launch.
Questions & answers

Do you offer automated functional testing services?
Yes. We provide automated testing using tools like Selenium, Cypress, and Playwright to accelerate regression cycles and improve test coverage.
What’s the difference between functional and non-functional testing?
Functional testing checks whether features work as intended. Non-functional testing evaluates performance, usability, and security aspects of the application.
Which platforms do you test—web, mobile, or desktop?
We test web applications, native and hybrid mobile apps (iOS/Android), and desktop platforms to ensure functional accuracy across all environments.
How do you perform manual functional testing?
Our QA engineers execute detailed test cases manually, replicating real user scenarios to verify UI behavior, form inputs, user flows, and integrations.
Do you provide functional testing as a service (FTaaS)?
Yes. Our functional testing as a service model offers scalable, on-demand QA support with flexible engagement options tailored to your release roadmap.
Can you integrate functional testing with CI/CD pipelines?
Absolutely. We integrate functional tests into your CI/CD workflows for continuous validation on each code commit or deployment.
Why choose DeviQA as your functional testing company?
DeviQA combines deep QA expertise, robust automation frameworks, and scalable delivery models to ensure fast, reliable, and cost-effective functional testing.