Mobile App Testing Without a Device Lab

Test your app live on 10,000+ real iOS and Android devices, let AI author tests for you, and run your existing Appium and Espresso suites on the same cloud, at scale.

Trusted by 3M+ users globally at

Microsoft
OpenAI
Nvidia
Boomi

"We have tripled our tests and are now executing tests in less than 2 hours with 78% Faster Test Execution"

Hrishi Potdar, Quality Engineering Architect

Boomi
GitHub
Best Egg

"We figured out a more efficient way to monitor system health and resolve failures earlier in lower environments."

Tenny, Engineering Operations Lead

Best Egg
Workday
Akamai
Louis Vuitton
NBCUniversal
City Furniture

"TestMu AI has significantly boosted our testing speed, is easy to implement, and provides exceptional support."

Nicholas Paulsen, Senior Quality Engineer

City Furniture
Cox
Transavia

"With 70% faster test execution, TestMu AI helped us achieve faster time-to-market and enhanced CX."

Daniel de Bruijn, Quality Assurance Automation Engineer

Transavia
Estée Lauder
TripAdvisor
boohoo

Why Mobile App Testing Needs Real Devices

Too Many Devices to Cover

Too Many Devices to Cover

Android spans tens of thousands of device and OS combinations. No in-house lab covers them all, and the gaps are where bugs hide.

Selectors Decay Every Release

Selectors Decay Every Release

Appium and Espresso tests are brittle. One minor UI tweak silently kills 30% of your suite and erodes trust in the runs.

Touch-First by Nature

Touch-First by Nature

Real users interact through the screen and device hardware. Tooling built for the web cannot reproduce how that behaves.

Build, Queue, Wait, Retry

Build, Queue, Wait, Retry

Mobile CI is slow. Long install times and small device pools make developers ship blind while results lag behind.

Automated Mobile App Testing with Real Devices

Author tests with AI, run live sessions, or execute existing Appium and Espresso automation on 10,000+ real iOS and Android devices.

TestMu Live Interactive App TestingLive Interactive App Testing

Test Your App on Real Devices

Open a live session on the same devices your users hold, with real GPUs, sensors, and network conditions.

Test on a Real Device
  • Real gestures on real hardware
  • Parallel testing for faster execution
  • Debug without switching tools
Live mobile app testing session on real device hardware

TestMu Traditional Test AutomationTraditional Test Automation

Run Your Existing Automation Suites

Already have scripted tests? Run your existing mobile automation on real devices without changing a line of code.

Start Automated Testing
  • Appium, Espresso, XCUITest, and Detox out of the box
  • Native CI/CD hooks for Jenkins, GitHub Actions, and GitLab
  • No device lab to provision, patch, or maintain
Existing mobile automation suites running on TestMu AI

TestMu AuthorAuthor

KaneAI Mobile App Testing Agent

The AI agent for mobile app testing. Upload your app. Type a plain English objective. The agent installs the app on a real device, creates test steps, executes each one, and saves the run as a reusable test.

Start Free Mobile App Testing
  • Runs on real hardware in the cloud
  • Auto-authored steps you can edit, save, replay
  • Manual interaction handoff when needed
KaneAI App Agent authoring mobile app tests from a plain English objective

TestMu KANE CLIKANE CLI

Test your mobile app from the terminal

Describe an app journey in natural language and KaneCLI runs it on emulators and simulators, right from your terminal.

Test your app from the terminal
  • Boots the emulator/simulator and installs your app for you
  • Runs the same tests on the cloud grid with no local setup
  • Returns recordings and device logs for every run

AI Agent Skills for Mobile App Test Automation

If your team uses Claude Code, Cursor, Copilot, or Gemini CLI, your AI agent can already write your mobile tests. Production-grade, open-source skills that teach your AI coding agents to write real Appium, Espresso, XCUITest, and Detox test code.

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45+ open-source skills across mobile and web frameworks.

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Works with 20+ AI agents across 15+ languages.

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Agents author the code, you run it on TestMu AI infrastructure.

Explore Agent Skills on GitHub
Appium Skill

Appium Skill

iOS & AndroidJavaPythonJSRuby
Espresso Skill

Espresso Skill

Android NativeJavaKotlin
XCUITest Skill

XCUITest Skill

iOS NativeSwiftObj-C
Detox Skill

Detox Skill

React NativeJSTS

Works with all agents:

Claude CodeCursorGitHub CopilotGoogle AntigravityOpenAI CodexOpenClawClineWindsurf

& more...

Test Biometrics, Networks, and Location at Scale

Native Gestures and Biometrics

Native Gestures and Biometrics

Pinch, swipe, and long press. Simulate Face ID, Touch ID, and fingerprint prompts. Handle deep links and app switching.

Network Throttling

Network Throttling

Simulate 3G, 4G, 5G, offline, and lossy connections. Validate retry logic and offline-first behavior on real radios.

Geolocation Testing

Geolocation Testing

Test from 170+ regions with GPS and IP spoofing. Validate region-locked features and localization end to end.

Full Session Telemetry

Full Session Telemetry

Device logs, network HAR, app logs, and video on every session. Each failure ships with a complete diagnostic trail.

Parallel Execution

Parallel Execution

Run hundreds of tests across real devices at once. HyperExecute orchestrates the queue and cuts suite time sharply.

Secure Tunneling

Secure Tunneling

Test localhost, staging, and internal builds from the cloud. SSO and SOC 2 Type II ready for regulated teams.

Plug Your Mobile Testing Frameworks into TestMu AI

Appium

Appium

Automate iOS and Android app tests in any language on 10,000+ real devices.

Espresso

Espresso

Run fast, native Android UI tests on real hardware in the cloud.

XCUITest

XCUITest

Run native iOS tests with Apple's framework on real iPhones and iPads.

Detox

Detox

End-to-end testing for React Native apps across real iOS and Android.

Maestro

Maestro

Flow-based mobile UI testing for Android and iOS, with no flaky waits.

Success Stories of TestMu AI (Formerly LambdaTest)

Dashlane

50%

reduction in test execution time

“HyperExecute is a highly reliable test execution platform and has excellent customer support.”

Sagar Uday Kumar

Sr. Engineering Manager

Some Love from our Customers

Debugging Specific Devices Got a Lot Easier. I liked being able to select a specific device and browser combination to troubleshoot issues reported by customers...see more >

Web Automation Testing

Real Device

Verified Reviewer

Verified Reviewer

handle

Just signed up for @testmuaia few weeks ago for browser/device testing. Loving it so far.

Web Automation Testing

Real Device

Nathan Rambeck

Nathan Rambeck

@nrambeck

handle

86000 + Minutes & 1300 + Tests Thank you @testmuai for helping us to tackle client requirement of running automated tests in multiple mobile browsers. With this, we had the flexibility to run multiple tests in parallel and our tests became scalable by widening the test coverage and reducing the time of execution. We highly recommend TestMu AI if you are looking for a cost-effective method to scale your tests, Thanks again and we are looking forward to leverage this to other projects as well.#lambda #efficiency #costoptimization #testingtools #testvox #crossbrowsertesting #crossbrowsercompatibility #testautomation

Web Automation Testing

Real Device

TestVox

TestVox

handle
View all reviews

More Reasons to Love TestMu AI (formerly LambdaTest)

See how TestMu AI improves your testing with seamless integration, quicker results, and unmatched accuracy.

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