Functional Testing Services for Web & Mobile | DeviQA
Software testing company

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.

Trusted by

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

What are functional testing services?

Functional testing services validate that software features work as expected based on business requirements, covering all user-facing and backend functions.

Yes. We provide automated testing using tools like Selenium, Cypress, and Playwright to accelerate regression cycles and improve test coverage.

Functional testing checks whether features work as intended. Non-functional testing evaluates performance, usability, and security aspects of the application.

We test web applications, native and hybrid mobile apps (iOS/Android), and desktop platforms to ensure functional accuracy across all environments.

Our QA engineers execute detailed test cases manually, replicating real user scenarios to verify UI behavior, form inputs, user flows, and integrations.

Yes. Our functional testing as a service model offers scalable, on-demand QA support with flexible engagement options tailored to your release roadmap.

Absolutely. We integrate functional tests into your CI/CD workflows for continuous validation on each code commit or deployment.

DeviQA combines deep QA expertise, robust automation frameworks, and scalable delivery models to ensure fast, reliable, and cost-effective functional testing.