Quality Assurance Services
Reduce development costs, ensure faster time to market, and provide excellent user experience by delivering high-quality software with Leobit’s quality assurance services. We provide skilled QA specialists to secure you from software quality issues at every stage of the software development lifecycle.
100+
QA projects delivered
Clutch Top 1000 Companies
Gold Partner
Digital & App Innovation
What are Software Testing services?
Leobit provides an experienced team of ISTQB-certified QA engineers to ensure excellent quality and bug-free performance of your software. We apply comprehensive testing strategies tailored to our customer’s needs.Our quality assurance specialists apply a variety of QA tools and frameworks, mobile devices, and best practices to provide end-to-end QA coverage of your product.
Our team excels in identifying critical bugs, ensuring cross-platform compatibility, optimizing performance, and enhancing security across web, mobile, and desktop applications. With a strong focus on delivering reliable and scalable software, we help our clients achieve their business goals through excellence in both functional and non-functional testing.
Types of testing we cover
Functional testing
System
Testing
Validates the entire software system as a whole
Acceptance
Testing
Confirms that the software is ready for deployment
Regression
Testing
Ensures updates don’t disrupt existing functionality
Smoke
Testing
Verifies that the most critical functionalities work after a new deployment
End-to-End
Testing
Validates the application’s workflow from start to finish, including all integrated systems and processes
Non-functional testing
Performance Testing
Checks if the software can handle a large amount of data/user
Accessibility Testing
Tests digital experiences to make it usable to everyone
Security Testing
Identifies vulnerabilities and weaknesses in software applications
Usability Testing
Evaluates the user’s experience when interacting with a website or app
Scalability Testing
Measures system’s ability to handle increased load
Reliability Testing
Checks the system’s consistency and fault tolerance.
Localization Testing
Tests system’s support for different languages/regions
Compliance Testing
Ensures adherence to industry regulations/ standards
Availability Testing
Tests system uptime and failover capabilities
With which grade of automation?
Manual Testing
- Test Case Management Tools
- Bug/Defect Tracking Tools
- Documentation and Collaboration Tools
- Mind Mapping Tools
- Performance Monitoring Tools
- Browser Developer Tools
- API Testing Tools (Manual API Testing)
- Cross-Browser Testing Tools
Semi-automated Testing
- Test Case Management Tools
- Bug/Defect Tracking Tools
- Documentation and Collaboration Tools
- Browser Developer Tools
- API Testing Tools
- Cross-Browser Testing Tools
- Performance Testing Tools
- Functional Testing Tools
- Test Automation Frameworks
Automated Testing
- Test Case Management Tools
- Bug/Defect Tracking Tools
- Functional Testing Tools
- API Testing Tools
- Performance Testing Tools
- Test Automation Frameworks
- Cloud-Based Testing Tools
- Version Control and Collaboration Tools
System-level testing techniques
Black Box Testing
- Effective for large-scale applications
- Focus on user experience
- No need for technical knowledge
Gray Box Testing
- Better understanding of complex systems
- Balance between user perspective and code
- Faster identification of defects
White Box Testing
- For critical systems
- Better security testing
- Early bug detection
- Validation of code structure
Execution-based testing methods
Static Testing
- Focuses on analyzing requirements, design documents, and source code
- Helps detect issues early
- Improves the design and code quality
Dynamic Testing
- Ensures the software behaves correctly during execution
- Catches functional and runtime defects
OUR SOFTWARE TESTING PROCESS
Test Planning
Test Preparation
Test Analysis
Test Execution
Defects Management
Quality Management
Acceptance Testing
Test Closure Activities
TYPES OF SOFTWARE WE TEST
Desktop
We verify new desktop applications across multiple versions of operating systems, using different hardware configurations similar to customer setups. We also utilize performance monitoring tools and check logs to measure CPU, memory, and resource consumption across a range of systems.
Web
In addition to functional testing, we also verify a variety of environments, devices, and browsers to ensure compatibility, performance, security, and usability. Automated tools and continuous testing practices help to ensure that the web platform meets user expectations across the board.
Mobile
Our in-house lab has 60 + real mobile devices, including iOS and Android cell phones and tablets, for some specific cases, we also use Cloud-based applications (i.e. BrowserStack) for higher coverage of test devices.
Cross-platform
We have an experience in testing multiplatform mobile applications with focus on Consistency, Functionality, Usability, Performance, Compatibility.
IoT / Embedded
We are experienced in testing computing systems that function within larger mechanical or electrical systems, where we encountered the following challenges: Hardware Dependency, Real-Time Constraints, Limited Debugging.
Tools we use for testing
Quality management
Tools
- TestRail
- Hiptest
- TM4J
- Zephyr
- Google Spreadsheet/Docs
Testing
Tools
- For Performance/Load testing:
- JMeter
- Blazemeter
- Loader IO
For Networking/Proxy
- Fiddler
- Charles Proxy
Project Management
Tools
- JIRA/Confluence
- Slack
For Interface/API
testing
- SoapUI
- Swagger UI
- Postman
For Cross browser/platform
testing
- Browserstack
- LambdaTest
For Automated testing/test
automation
- Java/.Net + Selenium
- JavaScript (TypeScript) + Protractor + Jasmine (Language + Framework + Runner)
- Katalon Studio
- Cypress
- Ghost Inspector
Why Leobit for Software Testing?
- ISTQB Gold Partnership
- 30+ experienced certified QA Engineers
- 150+ projects successfully delivered
- ISO 9001:2022 and ISO 27001:2022 certified
- On-site testing laboratory with 60+ smartphones and tablets
- Leobit Testing Center of Excellence – Quality Management Office (QMO)
Q&A
Testing can consume up to 30% of a project’s effort, and if developers are responsible for testing, it reduces their availability for other tasks by that same 30%. This separation helps maintain high standards by enforcing systematic testing processes, allowing developers to focus on feature implementation, while QA ensures that each release meets quality expectations before reaching users.
Having a separate QA team is essential to ensure objective and unbiased evaluation of a product’s quality. QA specialists focus solely on testing and validation, bringing a fresh perspective to identify defects that development teams might overlook. In addition, teams with QA engineers differ primarily in how they approach quality control, risk management, and product delivery processes.
Developers’ primary focus is on building features and functionality rather than on systematically finding weaknesses or edge cases. A dedicated QA team brings a specialized, unbiased perspective and a structured approach to testing, which helps ensure that products are thoroughly evaluated from multiple angles, ultimately leading to higher quality and reliability.
Manual testing is ideal for exploratory testing, usability assessments, and scenarios requiring human judgment or visual inspection, such as UI/UX reviews. It is also better for one-time tests, ad-hoc checks, or tests with frequently changing requirements, where automation setup may be too time-consuming.
Automation testing, on the other hand, is optimal for repetitive, high-volume test cases, regression testing, and scenarios that demand fast, consistent results, such as load and performance tests. It’s most effective for stable features that require frequent testing across different builds and environments, maximizing efficiency and reducing manual effort over time.
Quality assurance and quality control are often used interchangeably, but they are distinct processes that occur at different stages. Each serves a unique role essential for an effective and comprehensive quality management system.
QA is a proactive process focused on preventing defects. It involves setting up and improving processes, standards, and methodologies to ensure high-quality outcomes. QA activities include defining testing strategies, creating test plans, and establishing quality standards. The goal of QA is to enhance development and testing processes so that defects are minimized from the outset.
QC is a reactive process focused on identifying and correcting defects in the final product. It involves executing test cases, detecting bugs, and verifying that the product meets the established quality standards. The goal of QC is to evaluate the product by finding and fixing defects to ensure it functions as intended before release.
The cost of QA services is influenced by several key factors, including the complexity of the application (number of features, integrations, and testing requirements), the type of testing needed (manual vs. automated, performance, security), and the scope of coverage (number of platforms, devices, and environments to be tested). Additionally, the experience level of the QA team, project duration, and frequency of testing cycles play significant roles. Together, these factors help define the level of effort, time, and resources required, all of which impact the overall cost.
The number of QA specialists needed depends on the project’s size, complexity, and quality requirements. An ideal tester-to-developer ratio is typically between 1:3 and 1:5 for most projects, meaning one QA specialist for every 3 to 5 developers. This provides a balance between adequate testing coverage and team efficiency. For projects with higher complexity or critical testing needs, consider a lower ratio, like 1:2, to ensure thorough quality assurance.