Mobile application testing services

Reliable Mobile App Testing Services for Seamless User Experience

We specialize in end-to-end mobile application testing services that guarantee robust performance, security, and cross-device compatibility. Whether you're launching a consumer-facing app or an enterprise-grade solution, our expert QA team uses a blend of manual and automated testing approaches to detect bugs early, reduce crashes, and ensure a smooth experience across iOS and Android platforms.

mobile application testing services provider company
Team

8+

Years Expertise

Globe

350+

Trusted Clients

Tech mind

40+

Certified Tester

Team Star

100+

Testing Projects

\ Why We \

Why Choose Celestial Infosoft for Mobile App Testing?

  • 8+ Years of Mobile QA Expertise
  • ISTQB-Certified QA Engineers
  • Real Device & Cloud-Based Testing Infrastructure
  • Full Support for Native, Hybrid, and Cross-Platform Apps
  • Flexible Engagement Models (On-Demand or Dedicated QA Team)
  • Compliant with ISO 9001 & ISO 27001 Standards

\ Our Services \

Mobile application testing services we offer

PWA

Native Mobile Apps

Native apps are built for speed, performance, and platform-specific features. We rigorously test native iOS and Android applications to ensure they deliver smooth interactions, fast load times, seamless offline access, and full integration with device-specific functionalities like GPS, biometrics, and notifications.

  • Tested across major OS versions
  • Deep focus on UI/UX consistency with platform guidelines
  • Real device testing for accurate performance insights
Cross-Platform App

Cross-Platform Mobile Apps

Cross-platform apps built with frameworks like Flutter or React Native must look and feel native while running flawlessly on both iOS and Android. Our QA team ensures consistency, performance, and responsiveness across platforms, uncovering hidden bugs that could otherwise slip through due to codebase sharing.

  • UI/UX parity checks across platforms
  • Performance benchmarking on low-end and high-end devices
  • Compatibility testing across screen sizes and resolutions
Web Mobile UX Design

Mobile Web Applications

Mobile web apps should offer a responsive, intuitive experience directly through browsers, no download required. We test web apps across popular mobile browsers to ensure fast load times, proper layout adaptation, and touch-friendly navigation regardless of OS, browser engine, or device size.

  • Browser compatibility testing (Chrome, Safari, Firefox, etc.)
  • Responsive design validation
  • Network simulation testing for varied mobile conditions (3G, 5G, Wi-Fi)

\ Our Portfolio \

Our Mobile Testing Portfolio

Boosting Online Retail Efficiency with a Custom E commerce SaaS Platform 1

Cross-Platform QA for a Health Monitoring Mobile Application

User Centric Testing for a B2B Logistics Client Portal

Testing for a B2B Logistics Client Portal (Web + Mobile)

SaaS-Based Project Management

Optimizing Performance for a High-Traffic E-Commerce Web App

\ Our Services \

Web application testing services we offer

Usability Testing

Usability Testing

We validate your app's design, navigation flow, and ease of use through real-user testing scenarios. Our QA team ensures that every screen, gesture, and interaction is intuitive, responsive, and aligned with your users' expectations leading to higher engagement and retention.

Mobile App Development

Mobile Functional Testing

Our functional testing covers end-to-end user journeys, backend API validation, third-party integrations, and edge-case behaviors. We ensure that all app components, from login and notifications to complex in app transactions, perform flawlessly across different use cases.

Performance Testing

Mobile Performance Testing

We test your mobile app under various loads and network conditions to detect performance bottlenecks. Our engineers simulate real-world spikes in user traffic, slow 3G/4G connections, and background processes to ensure your app remains stable, fast, and responsive at scale.

Insurance Apps

Mobile Compatibility Testing

We assess your app across a diverse set of devices, OS versions, screen resolutions, and OEM customizations. Whether it’s a new iOS update or a budget Android device, our testing guarantees consistent look, feel, and functionality across the board.

Security Testing

Mobile Security Testing

Our security experts simulate real-world attacks to uncover vulnerabilities in your mobile app both client and server-side. We identify risks such as insecure data storage, weak authentication, or broken session management and provide mitigation strategies to safeguard your app and user data.

Mobile App Modernization

Mobile Accessibility Testing

We ensure your app is accessible to all users, including those with visual, auditory, or mobility impairments. Testing against WCAG 2.1, ADA, and platform-specific accessibility guidelines, we help create inclusive digital experiences that work seamlessly with assistive technologies.

\ How We Work \

Our Web Application Testing Process

Requirement Analysis

At the foundation of any successful testing strategy is a deep understanding of your app. We begin by thoroughly analyzing your mobile application's objectives, architecture, and critical user journeys. This includes identifying different user roles, usage contexts (online/offline, device environments), third-party integrations, and potential high-risk areas such as payment modules, data sync, or GPS functionalities. This insight allows us to build a QA roadmap tailored to your app’s unique needs and challenges.

Test Planning & Design

With clarity on your app’s structure and goals, we move into planning. Our team selects the most appropriate test types (functional, usability, performance, security, etc.), defines detailed test cases, and pinpoints key devices and OS versions for coverage. Whether it’s native iOS, Android, or cross-platform apps, we design scalable test plans and choose the most effective tools, such as Appium, BrowserStack, or Firebase Test Lab, to ensure optimal efficiency and real-device accuracy.

Execution & Defect Logging

We execute both manual and automated tests on a curated mix of real mobile devices and high-fidelity emulators. During this phase, our QA engineers simulate real-world usage conditions, including network interruptions, background activities, and multitasking behaviors. Any detected bugs or inconsistencies are logged in detail, complete with screenshots, logs, and reproduction steps to ensure developers can resolve issues swiftly and with full context.

Reporting & Optimization

After execution, we compile a comprehensive test summary that includes pass/fail rates, test coverage metrics, and insights into app stability and responsiveness. Beyond bug tracking, we offer proactive recommendations to improve user experience, optimize performance, and reduce future risk. Our goal is to help you launch confidently with a mobile application that is polished, secure, and ready for scale.

\ Our Recognition \

Trusted and respected globally

Clutch Top developers badge 2022
Outsourcing 100 2024 Award
Inc 5000 2025 Award
Clutch Top 1000 companies 2023
Top Software developers 2022

\ Few Words \

Clients who trust in our service

"Celestial Infosoft helped us test our enterprise web platform under extremely tight timelines. Their QA team was methodical, responsive, and caught critical issues before release. The clarity in their reports made it easy for our developers to act fast. We’ve definitely seen a quality boost in production since partnering with them."

VP Fintech SaaS Company (UK)

"We didn’t just need testers, we needed people who think like users and spot issues before they become problems. Celestial Infosoft delivered exactly that. The team was sharp, responsive, and really easy to work with."

Maya R. HealthTech – USA

“We launched our fitness tracking app with confidence thanks to Celestial’s QA team. They caught critical issues our developers had missed and made sure everything worked perfectly across Android and iOS.”

Rohan Sharma Product Manager

"What stood out was their attention to detail. Every bug came with clear steps, impact analysis, and suggestions. They didn’t just test, they helped us build confidence before launch."

Thomas EKart (Ecommerce – UK)

"It’s rare to find a QA partner who understands both agile speed and enterprise discipline. Celestial Infosoft found that balance. Our sprints actually moved faster with them on board."

Alisha N. Finlytix (Fintech – UAE)

“Celestial Infosoft's mobile testing team was a key partner in helping us meet our app store launch deadlines. Very responsive, thorough, and skilled across devices.”

Emma Product Manager

\ FAQs \

Frequently Asked Questions

It ensures your app works properly across devices, avoids negative reviews, and reduces security or performance risks post-launch.

We use both real devices for accuracy and cloud-based simulators for scale and speed.

Yes, we support native, hybrid, and cross-platform apps using frameworks like Flutter, React Native, Ionic, and Xamarin.

Depending on app complexity, testing can take from a few days to a few weeks. We work flexibly to meet your launch timelines.

Absolutely. We develop and run automated test suites using tools like Appium, Espresso, and Detox.

Every great project starts with a good conversation

We are curious to discuss your dream web project!

Consulatation