SAN FRANCISCO & NOIDA, INDIA -- TestMu AI (formerly LambdaTest), the world’s first full-stack Agentic AI Quality Engineering platform, announced two major enhancements to its Real Device Cloud: expanded support for Playwright automation across multiple programming languages and the introduction of Audio Injection and Live Audio Input capabilities for real iOS devices.

These updates address a growing need for testing modern applications that are not only cross-platform but also increasingly multimodal, involving voice, audio, and real-time user interactions.

With the latest release, TestMu AI now supports running Playwright tests on real devices using Java, Python, and C# in addition to existing capabilities. This allows enterprise teams to adopt Playwright within their preferred language ecosystems without being restricted to JavaScript-based workflows.

As Playwright adoption continues to grow across engineering teams, this enhancement enables seamless integration of real device testing into existing automation pipelines, improving coverage and reliability across mobile environments.

In addition, TestMu AI has also introduced Audio Injection and Live Audio Input for real android and iOS devices, enabling teams to simulate and validate microphone-based interactions directly during test execution. This capability allows testers to inject pre-recorded audio or stream live input into devices, making it possible to automate testing for use cases such as KYC voice verification, speech-to-text, in-app audio recording, conferencing workflows, and audio-driven user journeys.

“Applications today are no longer just visual; they are interactive, voice-enabled, and context-driven,” said Mudit Singh, Co-Founder and Head of Growth at TestMu AI. “Testing these experiences requires infrastructure that can replicate real-world conditions. With multi-language Playwright support and audio testing on real iOS devices, we’re enabling teams to validate more realistic user scenarios without relying on manual intervention.”

Key enhancements include the ability to run Playwright automation on real devices across Java, Python, and C#, allowing teams to integrate testing seamlessly into diverse technology stacks. Tests are executed on actual mobile devices, ensuring accurate validation of real-world scenarios and behavior. The platform also introduces audio injection for iOS devices, enabling the use of pre-recorded inputs for consistent, repeatable test scenarios, alongside live audio streaming for dynamic, real-time validation. Together, these capabilities extend testing coverage to voice-driven experiences such as speech-to-text systems, authentication workflows, virtual assistants, and other audio-based interactions.

These enhancements further strengthen TestMu AI’s Real Device Cloud by enabling teams to move beyond traditional UI validation and test increasingly complex, real-world user experiences at scale.