Best App Automation Testing Tool

Run Appium, Espresso, XCUITest, and Detox suites across 10,000+ real iOS and Android devices plus emulators, wired into your CI/CD.

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Trusted by 2M+ 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
Bohoo

Everything You Need To Automate App Testing

Automated app testing for QA and SDET teams, built on a real device cloud.

TestMu DEVICE COVERAGEDEVICE COVERAGE

Test on 10,000+ Real Devices

Run automated app tests on 10,000+ real Android and iOS devices plus on-demand emulators and simulators, so real hardware catches the biometric, sensor, and rendering bugs emulators miss.

Start free
  • Cover native, hybrid (React Native, Flutter), and mobile web apps across OS versions and OEMs.
  • Set isRealMobile: true in Desired Capabilities for physical hardware. Appium defaults to emulators.
  • Set geolocation across 170+ countries with no VPN, and drive camera, fingerprint, and gesture flows.

TestMu PARALLEL EXECUTIONPARALLEL EXECUTION

Hours of Runtime to Minutes

Run hundreds of Appium, Espresso, XCUITest, and Detox sessions at once, so a regression suite that ran sequentially for hours finishes in minutes. No grid to stand up.

  • Sessions queue and start on demand, so adding nodes shortens wall-clock time, not setup time.
  • HyperExecute splits test files and shards iOS XCUI suites for up to 70% faster runs.
  • Auto-retry reruns a transient failure once, so a flaky node does not red a passing build.

TestMu AI DEBUGGINGAI DEBUGGING

Find Root Cause in Minutes

Every session auto-captures device logs, network logs, video, screenshots, and crash reports, and agentic RCA correlates them to point at the likely failure.

Start free
  • Flaky-test detection and auto-healing separate infrastructure flakiness from real regressions.
  • SmartWait holds until an element is interactable, cutting timeout-driven false failures in dynamic flows.
  • AI triage labels each failure as app logic, network, device state, or test script, before you open it.

TestMu CI/CD INTEGRATIONCI/CD INTEGRATION

Test on Every Commit

Native integration with 120+ CI/CD tools triggers tests on every PR or commit, and HyperExecute gates the deployment so a failing suite stops a bad build before it ships.

Start free
  • Plugins for Jenkins, GitHub Actions, CircleCI, GitLab CI, Azure DevOps, and 120+ tools.
  • Reach private and pre-release builds through LT Tunnel over encrypted WebSocket, HTTPS, or SSH.
  • File a one-click bug to JIRA, Slack, and 65+ destinations with device, OS, and session ID attached.

Every App Testing Capability, Built In

Quick App Upload

Drag, drop, and deploy – no waiting, no friction. Get your mobile apps on real devices faster than ever.

Install from App StoreInstall from App Store
Install from Play StoreInstall from Play Store
Install from FirebaseInstall from Firebase
Install from App StoreInstall from App Store

40+ Features On Your Fingertips

Test like your users do on real hardware. Authentic gestures including Tap, Swipe, and Zoom deliver true-to-life app experiences.

Install App
Rotate
Physical SIM
Gesture
Dark Mode
GPS
Dark Mode
Bluetooth
Network Throttling
Volume

Device Logs

Debug faster with instant device logs. Get real-time insights into crashes, errors, and performance issues directly from device sessions.

Crash Logs
Error Logs
Network Logs
Console Logs
System Logs
App Logs
Performance Logs
Memory Logs
Battery Logs
CPU Logs

GPS & IPS based Geolocation testing

Test from 170+ global locations for accurate localization, compliance, and regional user experience.

Intelligent UI Inspector

Inspect every element with intelligent precision. Identify UI components, properties, and hierarchies to accelerate debugging.

Intelligent UI InspectorIntelligent UI Inspector

Accessibility Testing

Build for everyone – automated accessibility testing built-in. Catch WCAG violations early and deliver inclusive experiences for all users.

Text element color contrast02
SeriousWCAG 2.2chevron-down

Text must contrast with the background: 4.5:1 for small text and 3:1 for large.

Text truncation01
CriticalWCAG 1.4.3chevron-down
Non Text element color contrast01
SeriousWCAG 1.4.3chevron-down
Readable text spacing04
MinorWCAG 1.4.3chevron-down

Mobile App Automation Testing Grid on TestMu AI

Selenium

Selenium

Run tests across browsers in Java, Python, JS, and more.

Learn More
Playwright

Playwright

Cross-browser automation across Chromium, Firefox, and WebKit.

Learn More
Puppeteer

Puppeteer

Headless Chrome and Chromium automation via Node.js.

Learn More
Cypress

Cypress

End-to-end web app testing with real browser access.

Learn More
Appium

Appium

Automate native and hybrid apps on iOS and Android.

Learn More
Espresso

Espresso

Native Android UI tests with built-in synchronization.

Learn More
XCUITest

XCUITest

Native UI test automation for iOS and macOS apps.

Learn More
Jest

Jest

Write and run JavaScript tests with built-in mocking and coverage.

Learn More

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

More Reasons to LoveTestMu AI (formerly LambdaTest)

See how TestMu AI speeds up your testing with AI-native authoring, faster execution, and deeper test insights across web, mobile, and AI applications.

TestMu AI Named a Challenger in the 2025 Gartner® Magic Quadrant™

Read Report

TestMu AI recognized in The Forrester Wave™: Autonomous Testing Platforms, Q4 2025

Read Report

Wall of Fame

TestMu AI is #1 choice for SMBs and Enterprises across the globe.

Enterprise-Grade Security

We safeguard your data and AI systems with global security, privacy, responsible AI, and ESG standards.

Integrations

Works where you work, 120+ integrations with the tools your team relies on.

Users

3M+

Tests

1.5B+

Enterprises

18K+

Countries

132

As Seen On

Frequently asked questions

TestMu AI forEnterprise

Get access to solutions built on Enterprise
grade security, privacy, & compliance

  • Advanced access controls
  • Advanced data retention rules
  • Advanced Local Testing
  • Premium Support options
  • Early access to beta features
  • Private Slack Channel
  • Unlimited Manual Accessibility DevTools Tests