Quality Assurance That Catches Bugs Before Users Do
Manual, automated, performance and security testing for web and mobile software, whether we built it or your team did.
Quality assurance that catches problems early
We test web and mobile software for businesses worldwide, both the products we build and software your own team has built, as part of 1,000+ projects delivered since 2013.
Manual and automated testing, performance and security checks: we find issues while they are still cheap to fix.
What we build
Web applications
Cross-browser and responsive checks across every form and flow.
Mobile apps
iOS and Android apps tested on real phones and tablets.
Releases and updates
Regression checks so new features don't break old ones.
APIs and integrations
Endpoints and third-party connections checked for errors and edge cases.
Services
Testing services
Pick the testing you need, as part of a project we build or for software your team already has.
Manual and device testing
Experienced testers working through your product the way real users do.
- Exploratory and usability checks
- Cross-browser and device testing
- Edge cases validated
Automated testing
Test suites that run on every release, so regressions are caught in minutes.
- Regression suites
- API tests
- Run on every release
Performance and load
See how your software behaves under real traffic before your users do.
- Load testing
- Stress testing
- Bottlenecks reported
Security testing
Weaknesses found and reported before attackers find them.
- Vulnerability scanning
- Penetration testing
- Each finding with a fix
“It’s always a pleasure working with this team. A true professional, fast and on budget! Hired a couple times and will do it again.”
Our approach
Delivering quality software through rigorous testing
Since 2013 we've tested web and mobile software for clients worldwide: the products we build, and software built by other teams.
Issues that matter first
Bugs are ranked by impact, so your developers fix what users would notice first.
Our builds or yours
We test the software we build and software from your own or another team.
Every fix retested
Fixes are retested before they are closed, and regression-checked before release.
FAQ
Frequently asked questions
Straight answers to what clients ask before we test their software.
What is the difference between manual and automated testing?
Manual testing is a person using your product like a real user, which finds usability issues and unexpected edge cases. Automated testing runs scripted checks on every release, which catches regressions quickly. Most products need both.
Can you test software built by another team?
Yes. We test our own builds and software built by your team or another company, working inside your tools and release schedule.
When should QA start?
As early as possible. Involving QA at the requirements stage catches problems before they are built, when they are cheapest to fix.
How much does QA cost?
It depends on the size of the product, the testing you need and how often you release. After a short discovery call we give you a written scope and price, so the cost is agreed before any work starts.
Do you do performance and load testing?
Yes. We test how your software behaves under expected and peak traffic, and report the bottlenecks to fix before launch.
Do you do security testing?
Yes. We run vulnerability scans and penetration tests, and report each finding with how to fix it.
How do you report bugs?
Every issue is logged with steps to reproduce, screenshots and a severity level, and retested once it is fixed.
Will you sign an NDA?
Yes. We are happy to sign an NDA before you share any project details.
Ready to ship with confidence?
From manual checks to automated suites, performance and security testing, we catch bugs before your users do. Let's discuss your quality assurance needs.
What Our Clients Say
We've helped companies ship reliable software. Here's what they say about working with us.
"I am very happy to use this Laravel Site Builder. It is very powerful and easy to use. It save a lot of time for development. Everything is organized good and work very smooth. Bilal show strong technical skill and responsible attitude. He is serious and professional developer. I trust his work quality. I feel very satisfied with this project."
"I have worked with Bilal for close to twenty years. I trusted him then, and I trust him completely now, which in this industry says everything. Xelent delivers top-quality service across the board. Even as they've grown so much, the service has never slipped. Not even once. If you want a company that is dependable, forward-thinking, and consistently delivers at the highest level, Xelent is exactly that."
"Xelent has always doing incredible work for us, at a reasonable rate! We are most impressed with the communication and understanding of updates/changes that need to be done. We are a US based company, and have tried other developers overseas, but none of them have performed as well as Xelent. Working with Bilal is a pleasure, and we will continue to send website development projects their way. I'd recommend you have them bid your next project!"
"Its been a pleasure getting my work done by Xelent Solutions team. Highly understandable, least instructions given with most amount of work out put. Looking forward to work more in future as well."
"It's always a pleasure working with this team. A true professional, fast and on budget! Hired a couple times and will do it again."
"I couldn't be any happier about my experiences with Xelent Solutions. I had a very short, tight deadline, and they worked around the clock to get the job done - perfectly. Can't wait to work with them again!"
"The entire team was highly professional, responsive, and dedicated throughout the project. The communication was smooth, deadlines were met, and the end result exceeded my expectations. I appreciate the quality of work and your ability to understand and implement requirements accurately. Highly recommended!"
Trusted by businesses worldwide. See what our clients say about us.