software testing & quality assurance services

A Robust Software Testing Company

“Your software, our expertise, a winning combination.”

Zealous System is a global software testing company that offers cutting-edge software testing solutions to help businesses ensure that their software products meet requirements and user expectations. By ensuring adherence to behavioral standards and ensuring high quality, our software quality assurance services enhance speed, security, and the overall customer experience. Our top-notch QA services also help to reduce costs without affecting quality, speed, security and user experience.

We are one of the leading software testing outsourcing companies that prioritize our clients’ unique requirements, and our complete manual and automated testing services adhere to the highest standards of quality assurance, best practices, and processes. Our team of software testers goes above and beyond to provide quality QA testing services that deliver dependable, scalable, and resilient software solutions.

Get To Know Us
Software Testing

Our Software Testing Services

At Zealous System, we offer end-to-end testing solutions to help you deliver high-quality software faster. From automation to security, our QA team covers every critical area to keep your product reliable, scalable, and bug-free.

Automation Testing

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Performance Testing

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Mobile Testing

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Code Verification

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Security Testing

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Manual Testing

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Automation Testing-1

Automation Testing

Our team builds robust automated test scripts to validate your software quickly and repeatedly. Automation helps speed up the testing process, reduce human errors, and ensure consistent performance across releases. This is ideal for projects with frequent updates or large-scale systems.

Automation Testing
Performance Testing-1

Performance Testing

Mobile apps need to work seamlessly on different devices and screen sizes. Using real devices and emulators, QA engineers validate everything from usability to performance. The goal is to deliver a smooth, bug-free experience on both iOS and Android platforms.

Performance Testing
Mobile Testing-1

Mobile Testing

We test your mobile apps on real devices and simulators to ensure top performance across iOS and Android platforms. We check screen resolutions, gestures, network conditions, and battery usage. With our mobile testing, your app delivers a smooth, bug-free experience on every phone and tablet.

Mobile Testing
Code Verification-1

Code Verification

High-quality code forms the backbone of secure and scalable software. Our specialists examine the source code to catch logical errors, inefficient practices, and non-compliance with coding standards. Early verification improves maintainability and reduces rework later.

Code Verification
Security Testing-1

Security Testing

Cybersecurity threats are real and growing. Security testing focuses on detecting vulnerabilities like data breaches, insecure APIs, or unauthorized access. The process ensures your application meets compliance standards and keeps sensitive user information safe.

Security Testing
Manual Testing-1

Manual Testing

Some bugs only appear through human interaction. Manual testers explore your application from a real user’s perspective—clicking, swiping, and using features just like your audience would. This hands-on approach helps uncover hidden usability and functional issues.

Manual Testing

Our Work

“From Idea To Implementation: Our Expertise In software testing Services To Achieve Success.”

Process We Follow for Software Testing

Zealous System’s Software Testing process includes thorough assessment, strategic planning, seamless migration, and optimization, ensuring your legacy systems evolve into future-ready, efficient solutions.

Scope Analysis Process

Scope Analysis
Process

  • Requirement Gathering
  • Detailed Scope Documentation
  • Wireframes
  • Technical Feasibility
Sprint Planning & Execution

Sprint Planning
& Execution

  • Sprint Planning
  • Daily Standup Meeting
  • Designing & Development
  • Testing & Stage/Dev Deployment
UAT & Release

UAT &
Release

  • UAT Feedback & Bug Resolution
  • Deliver Well-crafted software
  • Deploy All Assets and Code
Aftercare

Aftercare

  • Knowledge Transfer to Client Team
  • Contract Based Support
  • Release Notes/User Manuals (If applicable)
Ready?

Code. Create. Conquer. with us,no regrets.

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End-to-End Software Testing That Delivers Quality, Speed & Confidence

At Zealous System, we test everything—from functionality to performance and security—so your software works perfectly, launches faster, and keeps users happy.

Build Quality from the Start

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Build software quality from the Start
  • We test early in the development process to catch issues before they grow.
  • Our QA experts align closely with your dev team to avoid rework.
  • We use test plans and strategies tailored to your product goals.
  • Every function, feature, and user flow goes through deep validation.
  • We help your product launch faster with fewer bugs.

What We Test

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test mobile and web apps on real devices and browsers
  • We test mobile and web apps on real devices and browsers.
  • Our testers check every function to ensure smooth operation.
  • We look at speed, load time, and overall performance.
  • We verify code quality and follow coding standards.
  • We scan your app for security flaws and data risks.

Benefits of Quality Assurance

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Benefits of Quality Assurance
  • You deliver a better experience to your users.
  • Your software runs faster, smoother, and more reliably.
  • You reduce the cost of fixing issues after launch.
  • You stay ahead of competitors with stable updates.
  • You gain confidence knowing everything has been tested.
Healthcare
Education
Real Estate
Travel
mining industry software solutions
Aerospace and Defence Software Development Company
ecommerce app development company
logistics software development company
manufacturing software development company

Technology Stack For Rigorous Software Testing Services

“Reimagine what’s possible with our creative technology stack.”

Apache J Meter
Apigee
Citrus
GraphQL
Katalon
Postman
Rest Assured
Swagger Ui
Soap UI
Cucumber
Cypress
FlaUI
Jenkins
Kotlin
Protractor
Selenium
Specflow
Test Complete
Accelq
Appium
Browser Stack
Expresso
Katalon
Kobiton
Test Grid
Perfecto
Xamarin
Apache J Meter
Appvance
Blaze Meter
Headspin
Jmeter
Load Ninja
Loadster
Storm Forge
Wapt
Asana
Azure devops
Clickup
Hp Alm
Jira
Pivotal
Test Rail
Tracker
Trello
Browsera
Jasmine
Katalon
Lambda Test
Night Watch
Ready API
SiteDigger
Spring Trax
Web Load

Api Testing

  • Apache J Meter
  • Apigee
  • Citrus
  • GraphQL
  • Katalon
  • Postman
  • Rest Assured
  • Swagger Ui
  • Soap UI

Automation Testing

Mobile App Testing

Performance Testing

Test Management

Web App Testing

Why Choose Zealous for Software Testing Services?

We help you launch software that works perfectly—every time. From startups to enterprises, businesses trust Zealous System for reliable, efficient, and result-driven QA solutions.

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Expert QA Team

Our experienced software testers know how to find bugs that others miss. They ensure your software works exactly as intended.

Real Device & Cross-Browser Testing

Your application is tested across multiple devices, browsers, and operating systems to guarantee a smooth user experience everywhere.

Quick & Scalable Testing Process

Whether your app is a small MVP or an enterprise-level product, we scale our testing to match your speed and project size.

Early Involvement in SDLC

Our testers join from the planning phase to detect bugs early, reduce costs, and improve delivery speed.

Security-First Testing

We scan your software for vulnerabilities, weak access points, and compliance issues to ensure it stays secure and trustworthy.

Easy-to-Read Bug Reports

Every report highlights critical issues, screenshots, steps to reproduce, and clear severity levels—making it easy for developers to fix them.

Agile and DevOps Friendly

We integrate seamlessly with your workflows, tools, and sprint cycles to keep QA efficient and continuous.

Collaboration with Developers

Our QA experts work closely with your dev team to ensure every bug is fixed quickly and releases go smoothly.

Entrepreneurs who believed in us.

goodfirm clutch
Testimonials

Phil Mackrell from Cync

Testimonials

Jerome Branny from SpreadWall

Testimonials

Stephen Hall from Prezherm

Testimonials

Duncan Stewart from Menuvenu

“I have used Zealous for several of my projects, I have found the team to be very professional yet personable. When I work with Zealous, I know I am getting the best developers who understand my requirements before they start.”

Andrew arlington

Andrew Arlington

Sales Director at Digital Dilemma

“From day-1 Pranjal and his team have been very good at delivering quality work on time to budget. They are dynamic, if resources need to be shuffled around depending on what work needs to be done.”

Graham bradford

Graham Bradford

Senior Product Manager at Ecentric Payment Systems Driving

Frequently Asked Questions

We built strategies before development that work just for you.

Why choose Zealous for software testing & quality assurance services?

For over ten years, Zealous has been at the forefront of innovation, creating bespoke technological solutions for businesses across various industries. Our team of experts is dedicated to providing top-notch quality assurance services that help our clients achieve their goals. By working closely with our clients at every stage of the application development process, we ensure that they have real-time visibility into their project’s progress, resulting in the delivery of exceptional software solutions.

How to choose software testing services company?

Choosing the right software testing services company is essential for ensuring the quality and reliability of your software product. Here are some factors to consider when making your selection:

  • Look for a company with extensive expertise and experience in software testing.
  • The company should be able to provide a comprehensive set of services tailored to your project’s needs.
  • Determine if the testing company has experience in your industry.
  • They should follow industry-standard practices such as Agile or DevOps.
  • Assess the company’s communication channels, responsiveness, and their willingness to collaborate closely with your development team.
  • They should have robust quality control mechanisms in place to ensure the accuracy and reliability of their testing activities.
  • Consider the company’s scalability and flexibility to accommodate your project’s needs.
  • Ensure they have appropriate measures in place to protect your sensitive data and intellectual property.
  • Look for a company that offers a balance of quality services and competitive pricing.
  • Seek references and recommendations from trusted sources, such as colleagues or industry experts.

What is your perspective on QA testing services as a software testing company in India?

From the initial planning stage, we take a comprehensive approach to understanding your business requirements and provide innovative ideas to execute them effectively. Our thorough test planning process helps us stay on track and within your budget and timeline, so you can be confident in the quality of your product from start to finish.

What is QA vs software testing?

QA (Quality Assurance) and software testing are closely related but distinct concepts in the software development process. Here’s a breakdown of each:

Software Testing: Software testing is a subset of the QA process and focuses on systematically identifying defects or bugs in a software application. It involves the execution of test cases and verification of software functionality, performance, usability, security, and other aspects. Software testers use various techniques, such as manual testing or automated testing, to uncover issues and ensure the software meets the specified requirements.

Quality Assurance (QA): QA refers to a broader set of activities aimed at ensuring the quality of a software product. It involves processes and methodologies implemented throughout the software development lifecycle to prevent defects and maintain high standards. QA activities include defining and implementing quality standards, establishing processes, conducting audits, and managing overall quality control. QA focuses on improving the development process itself to enhance the quality of the final product.

How do you take care of intellectual property rights?

At the outset of every project, we establish a Non-Disclosure Agreement with each client to uphold strict confidentiality standards. Our commitment to safeguarding our clients’ information and intellectual property is of the utmost importance to us, and we take every precaution to ensure that it remains secure and private.