---
source_url: "https://www.a1qa.com/services/compatibility-testing/"
title: "Best Cross-platform and Cross-browser Application Testing | Compatibility QA services for companies"
mirrored_at: 2026-08-24T03:02:26.182Z
host: www.a1qa.com
cited_in_42a: true
mirror_canonical: "https://index.42a.ai/www.a1qa.com/services/compatibility-testing/index"
---

> **Original source:** https://www.a1qa.com/services/compatibility-testing/

![Colorful hummingbird in flight isolated on a black background](https://www.a1qa.com/wp-content/uploads/2020/10/bg-hero-compatibility-testing.webp)

Ensure consistent user experience across all browsers and platforms with a1qa’s various compatibility testing services

## a1qa tests compatibility with

![](https://www.a1qa.com/wp-content/uploads/2020/11/icon-5-5.svg)

Browsers

![](https://www.a1qa.com/wp-content/uploads/2020/11/icon-5-8.svg)

Screen resolutions

![](https://www.a1qa.com/wp-content/uploads/2020/11/icon-11-4.svg)

Hardware

![](https://www.a1qa.com/wp-content/uploads/2020/11/icon-5-1.svg)

Operating systems

![](https://www.a1qa.com/wp-content/uploads/2020/11/icon-10-7.svg)

Configurations

![](https://www.a1qa.com/wp-content/uploads/2020/11/icon-3-6.svg)

Databases

![](https://www.a1qa.com/wp-content/uploads/2020/11/icon-5-4.svg)

Servers

![](https://www.a1qa.com/wp-content/uploads/2020/11/icon-5-2.svg)

Connectivity protocols

## Our app compatibility testing services

Being among the top compatibility testing companies and providers of the best cross-browser testing services, a1qa leverages advanced tools and conducts full-cycle system compatibility tests across platforms, browsers, and devices to cover each environment and ensure 360-degree uniformity of your software.

![](https://www.a1qa.com/wp-content/uploads/2020/11/icon-20-9.svg)

### Cross-browser compatibility testing

Our QA specialists seamlessly deliver cross-browser testing services to ensure your users have positive experience with the graphics and features across all targeted versions of browsers regardless of the OS. With our experience in compatibility testing for web applications, desktop software, and other solutions, our company ensures consistent performance of your software across the entire set of applicable devices and OSs.

![](https://www.a1qa.com/wp-content/uploads/2020/11/icon-21-9.svg)

### Cross-platform compatibility testing

Our team works to help you render flawless digital user experience through compatibility testing across user environments. We consider each discrepancy caused by software incompatibility, including poor OS-level performance, UI inconsistencies, and platform-specific impediments.

## Mobile compatibility testing consultancy and services

We verify the uniformity of user experience through cross-device testing against a multitude of issues and aspects specific to mobile hardware, OSs, and network conditions. To provide for all possible nuances, a1qa uses its fleet of 300+ mobile devices.

![Illustration of multiple mobile devices with checkmarks representing mobile compatibility testing](https://www.a1qa.com/wp-content/uploads/2020/10/img-mobile-compatibility-testing.svg)

   ![](https://www.a1qa.com/wp-content/themes/a1qa/dist/assets/images/bg-cta-2.png)

Contact our team

Make your product perform at its best with a1qa’s software compatibility testing team.

![Internet Explorer logo with stylized e icon and text Internet Explorer](https://www.a1qa.com/wp-content/uploads/2020/10/internet-explorer-text-internet-explorer.webp)

![Opera logo with stylized gray and black O icon and black Opera text](https://www.a1qa.com/wp-content/uploads/2020/10/opera.webp)

![Safari browser logo with compass icon and Safari text](https://www.a1qa.com/wp-content/uploads/2020/10/safari-browser-compass-safari-text.webp)

![Windows logo with black window icon and Windows text](https://www.a1qa.com/wp-content/uploads/2020/10/windows-black-window-windows-text.webp)

![Debian logo with stylized spiral icon and the text debian](https://www.a1qa.com/wp-content/uploads/2020/10/debian.webp)

![Red Hat logo with black text and stylized red and gray hat icon](https://www.a1qa.com/wp-content/uploads/2020/10/red-hat.webp)

![FreeBSD logo with black devil head icon and FreeBSD text](https://www.a1qa.com/wp-content/uploads/2020/10/freebsd.webp)

![Google Chrome browser logo with the text Chrome](https://www.a1qa.com/wp-content/uploads/2020/10/chrome.webp)

![Firefox Browser logo with gray fox wrapped around circular icon](https://www.a1qa.com/wp-content/uploads/2020/10/firefox.webp)

![Konqueror logo with gray gear icon and black wordmark Konqueror](https://www.a1qa.com/wp-content/uploads/2020/10/konqueror-gray-gear-black-wordmark-konqueror.webp)

![macOS wordmark for Apple desktop operating system compatibility testing](https://www.a1qa.com/wp-content/uploads/2020/10/macos-wordmark-apple-desktop-operating-system-compatibility.webp)

![Fedora logo with stylized lowercase fedora text and circular f icon](https://www.a1qa.com/wp-content/uploads/2020/10/fedora.webp)

![Ubuntu logo with circular icon and ubuntu text](https://www.a1qa.com/wp-content/uploads/2020/10/ubuntu.webp)

![openSUSE logo with stylized chameleon above the text openSUSE](https://www.a1qa.com/wp-content/uploads/2020/10/opensuse-chameleon-text-opensuse.webp)

![vmware logo](https://www.a1qa.com/wp-content/uploads/2020/10/vmware.webp)

![Microsoft Hyper-V logo with Windows-style four-pane icon in black](https://www.a1qa.com/wp-content/uploads/2020/10/microsoft-hyper-windows-style-four-pane-black.webp)

![KYM logo with panda mascot and floating black circles](https://www.a1qa.com/wp-content/uploads/2020/10/kym-panda-mascot-floating-black-circles.webp)

![Microsoft Edge logo with stylized green and gray wave icon](https://www.a1qa.com/wp-content/uploads/2020/10/microsoft-edge-green-gray-wave.webp)

![Yandex Browser logo with black and silver circular emblem](https://www.a1qa.com/wp-content/uploads/2020/10/yandex-browser-black-silver-emblem.webp)

![android logo with gray Android robot head icon](https://www.a1qa.com/wp-content/uploads/2020/10/android-gray-android-robot-head.webp)

![iOS wordmark in black letters representing Apple mobile operating system](https://www.a1qa.com/wp-content/uploads/2020/10/ios.webp)

![iPadOS wordmark displayed in bold black text on a transparent background](https://www.a1qa.com/wp-content/uploads/2020/10/ipados-wordmark-displayed-bold-black-text-transparent.webp)

## How we test for compatibility

1.  ### Analysis
    
    We start our application compatibility testing with an in-depth consultancy phase that focuses on the analysis of your product’s specifics, its target audiences and markets, and your business objectives.
    
2.  ### Compatibility matrix
    
    Based on the defined set of user environments and compatibility requirements, we build a matrix to map out all potential interaction configurations, prioritize them, and select relevant testing methods.
    
3.  ### Test execution
    
    Our QA engineers perform rigorous compatibility testing using a combination of manual and automated testing methods according to the matrix outlined at the previous stage, ensuring comprehensive coverage of mobile, web, and desktop testing compatibility scenarios.
    
4.  ### Report
    
    We deliver highly detailed reports uncovering all detected defects across targeted environments, and provide recommendations for overcoming these challenges and making your product all-round compatible.
    

![Abstract connected workflow diagram with testing, checklist, and report document icons](https://www.a1qa.com/wp-content/uploads//2020/10/connected-workflow-diagram-testing-checklist-report-document.svg)

## Related cases

## Why turn to a1qa for compatibility testing?

![](https://www.a1qa.com/wp-content/uploads/2020/11/icon-10-4.svg)

20+ years of software testing excellence

![](https://www.a1qa.com/wp-content/uploads/2020/11/icon-10-9.svg)

Testing done with minimal overheads

![](https://www.a1qa.com/wp-content/uploads/2020/11/icon-4-7.svg)

100% successful test execution

![](https://www.a1qa.com/wp-content/uploads/2020/11/icon-4-4.svg)

Flexible engagement and pricing models

![](https://www.a1qa.com/wp-content/uploads/2020/11/icon-10-5.svg)

On-demand testing resources available

![](https://www.a1qa.com/wp-content/uploads/2020/11/icon-4-8.svg)

Transparent project traceability

## Frequently asked questions

Compatibility testing involves checking how your application behaves across different browsers, operating systems, devices, and screen resolutions. By covering everything from OS-level performance to UI differences, compatibility testing helps ensure a uniform and stable user experience.

QA engineers with relevant skills and expertise typically handle compatibility testing. They build a matrix mapping out all the target devices, platforms, and browsers and run both manual and automated tests to detect any performance or UI inconsistencies across every environment.

By detecting incompatibilities early in the project, compatibility testing specialists help their clients prevent negative user feedback, costly patches, or reworks after launch. Ensuring a smooth user experience across all target platforms also helps reduce customer support overheads and reinforce your product’s reputation.

Compatibility matrix represents a grid of environments, including hardware, platforms, browsers, and specific builds, used to determine where software must be validated. We analyze your audience, software specs, and analytics on the most used devices, browsers, OSs, and screen resolutions among your end users to pinpoint the most critical setups, helping focus testing resources in the most effective way.

We check application behavior on diverse browsers, mobile units, screen dimensions, and system versions, testing the interface design, overall utility, and responsiveness in authentic environments. This helps guarantee a seamless and dependable experience for users on every supported device.

We maintain a mix of 300+ commonly used devices, carefully selected based on the market usage, the latest technological updates, and your target audience.

We use traffic statistics, targeting specific setups most popular with core users. This involves reviewing site analytics, current market trends, and vital user groups to pinpoint high-priority platforms. Rarer configurations are checked later to maintain a smart balance between thorough and properly allocating project resources.

Yes. We rely on usage patterns and commercial requirements to identify which older versions truly matter. This results in ensuring software is stable and usable for those visitors, even if it lacks some of the visual polish seen on newer platforms.

We test software on a spectrum of screen scales, shapes, and magnification levels, examining responsive flows, element spacing, font readability, and navigation across these variations. This helps confirm that the interface adjusts correctly and provides a reliable experience on different screens and display setups.

We host software in environments that match your intended deployment. This includes auditing operational logic, data processing, and stability in each scenario to find any unique environment conflicts.