John D.
Best for web designer to test all UI in different screen size.
Great experience with this tool. It help me to fix my all UI/UX issue using their multiple devices. Thanks to team as they help me to setup my project.

TestMu AI (Formerly LambdaTest) is a Full Stack Agentic AI Quality Engineering platform that empowers teams to test intelligently and ship faster. Engineered for scale, it offers end-to-end AI agents to plan, author, execute, and analyze software quality. AI-native by design, the platform enables testing of web, mobile, and enterprise applications at any scale across real devices, real browsers, and custom real-world environments.
TestMu AI (Formerly LambdaTest) (testmuai.com) has 94 customer reviews on Five Star Index, with an average rating of 3.4 out of 5.
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94 approved reviews, newest moderated first
John D.
Great experience with this tool. It help me to fix my all UI/UX issue using their multiple devices. Thanks to team as they help me to setup my project.
Levente F.
I subscribed to a monthly subscription. I used it for a few days. It threw up a window asking me to switch to an annual subscription, which I didn't want, I just closed the window. It switched to an annual subscription and immediately deducted the money. I wrote to the support who didn't write anything at first, but they read what I wrote. Then they gave me an email address to discuss it with them. Of course, no one responds and based on what I read here, I shouldn't expect a refund. I used Safari for manual testing, but if I accidentally reload the window with F5, the session ends and won't let me start a new one unless I wait. The saddest thing is the support, who cares about you until you pay. After that, you're forgotten.
Darshan S.
LambdaTest allows for cross-browser testing and real-time browser testing. As a developer, it helps me significantly by enabling me to test my websites and apps. Additionally, we can automate our testing tasks using this tool. It is also easy to use.
Pratik V.
What I like most about LambdaTest is how easy it is to get started. I didn’t have to spend hours figuring out the setup—it’s very plug-and-play. The ability to test on different browsers and devices without maintaining an in-house lab is a huge plus. I also find the UI clean and straightforward, which makes switching between browsers or resolutions super smooth. It’s great for quickly checking how a layout behaves across environments.
Jigar S.
Seriously, Lambdatest has been a life saver for our team. We were really struggling with setting up different test environments for all the browser and OS versions we needed and it was a total wasting lot of time for our team, Now? We just hop on Lambdatest through google results and boom, we were able to test everything. The real time testing is super smooth, no lag or anything, and our automated tests run smoothly also. Also, thanks for their team as well for full support whenever we need help to setup anything.
Kibo H.
I have been using LambdaTest since 2022 and now finally have the time to share my experience. As a freelance software tester, I consider myself a pro user of this tool due to its reliability and extensive features. LambdaTest has proven to be incredibly handy, especially for automated Selenium script execution and real-time interactive testing. The platform’s cloud-based infrastructure allows me to run tests across multiple browsers and operating systems without the need for maintaining complex local setups. This has significantly streamlined my testing workflows and improved efficiency.
Nicoletta D.
Best testing tool I have seen till now. Because using this tool I can test both Android and IOS applications. This tool is provide best service to test any products in local base. We can test any product in our local system before we go on production. It will help for both QA team and development team.
Dharti P.
LambdaTest allows for cross-browser testing and realtime browser testing. As a developer, it helps me significantly by enabling me to test my website and apps. Additionally, we can automate our testing tasks using this tool. It is also easy to use.