Maestro

Maestro is an open-source UI testing framework for mobile and web apps, with tests authored as human-readable YAML flows. Its CLI runs those tests locally on a user's devices and can also execute them in continuous integration. Maestro Studio is a visual desktop app for building and running tests, with screen inspection, command suggestions, and an embedded emulator. Maestro Cloud runs tests in parallel on hosted devices and provides video playback, detailed logs, and flake detection. Supported targets include Android, iOS, React Native, Flutter, and web applications. Web testing is in beta and limited to Chromium, with preset locale and screen dimensions. Cloud integrations include GitHub Actions, Bitrise, Bitbucket Pipelines, CircleCI, and generic CI providers; results can be sent to pull requests, Slack, email, or webhooks. The Local plan is free. Cloud starts at $250 a month per device, based on maximum concurrent executions, and offers a free seven-day trial without a credit card. Web or Chromium device pricing is available by inquiry.

Maestro offers both local test execution and hosted parallel runs, with desktop tooling for building and inspecting tests. Web testing's beta status and Chromium restriction are important limits to consider.

Maestro is aimed at testers, developers, engineers, and DevOps teams automating mobile and web app tests. The local CLI may suit teams running tests on their own devices, while Cloud supports hosted parallel runs.

Overview

Maestro is an open-source UI testing framework for mobile and web apps, with tests authored as readable YAML flows. It suits developers, testers, engineers, and DevOps teams automating app checks; the strongest case is mobile testing, while web coverage is still a limited beta.

Its mix of a local CLI, desktop authoring tool, and hosted execution lets teams begin on their own devices and add cloud capacity when parallel runs become important. The trade-off is that web tests are restricted to Chromium and preset locale and screen dimensions.

Key features

Local YAML workflows

The open-source CLI runs tests on a team's own devices or in CI. That makes Maestro a practical no-cost starting point for teams able to supply and manage their own execution environment. Studio adds screen inspection, command suggestions, and an embedded emulator for building and running tests from a desktop app; it is available on Windows, macOS, and Linux.

Cloud execution and feedback

Maestro Cloud runs tests in parallel on hosted devices and provides video playback, detailed logs, and flake detection. Integrations include GitHub Actions, Bitrise, Bitbucket Pipelines, CircleCI, and generic CI providers. Results can be sent to GitHub pull requests, Slack, email, or webhooks, which helps teams make test outcomes visible in existing workflows.

Cloud supports Android, iOS, and web devices, but the web option inherits the Chromium-only beta limits. Its monthly cost is based on maximum concurrent executions, so teams should weigh the value of hosted parallelism against the concurrency they need.

Pricing

Maestro is freemium: Local costs nothing, billed Free Open Source. It includes runs on your own devices, Maestro MCP, Viewer, Studio, CLI, and local agents. This plan fits teams comfortable managing their own devices and execution; it does not provide hosted device runs.

Cloud costs $250 a month, billed $250/device/mo, with price based on maximum concurrent executions. It includes unlimited hosted test runs on Android, iOS, and web devices. The price basis makes concurrency a key budgeting consideration, rather than run volume. A free 7-day Cloud trial requires no credit card.

Enterprise Cloud has custom pricing and includes custom contracts, SSO, dedicated support, managed test cases, and a security review. Its premium dedicated support and vendor and security review make it the relevant tier for organizations needing those provisions. The privacy notice says servers are in the United States and personal information may be transferred, stored, and processed in other countries.

Platforms

Maestro targets Android, iOS, React Native, Flutter, and web applications. Studio runs on Windows, macOS, and Linux. Web testing is in beta, supports Chromium only, and uses preset locale and screen dimensions; teams requiring broader browser coverage or configurable test contexts should look elsewhere. Maestro covers mobile and web apps, not desktop app testing.

Who it's for

Maestro is best suited to teams focused on mobile UI automation that want readable YAML flows, local execution, and a path to hosted parallel runs. Local fits teams with their own devices and CI setup. Cloud is more appropriate when hosted devices, parallel execution, and run diagnostics justify its per-device monthly pricing. It is a weaker fit for cross-browser web testing, desktop app testing, or teams that need web testing beyond the current Chromium beta.

Pros and cons

• Pro: The open-source CLI and Local plan support runs on a team's own devices and in CI without a Cloud subscription.
• Pro: Studio combines visual test building with screen inspection, command suggestions, and an embedded emulator.
• Pro: Cloud pairs hosted parallel runs with video, detailed logs, flake detection, CI integrations, and result notifications.
• Con: Web testing is beta, Chromium-only, and limited to preset locale and screen dimensions.
• Con: Cloud's monthly price is based on maximum concurrent executions, which can make the required parallel capacity a central cost decision.
• Con: It does not cover desktop app testing or cross-browser testing.

Alternatives

testRigor is another freemium option with a free plan and trial, and lists platforms including API and extension alongside mobile and web; consider it when that broader platform mix matters.

TestCafe has a free, open-source framework plan and a paid Personal plan at $20 a month; it is an alternative for readers weighing a free test runner against paid Personal access.

TestMu AI Web Automation offers a free tier with 100 lifetime minutes and two parallel web and mobile automation sessions; it may suit readers whose needs fit within those explicit caps.

WebdriverIO is a free open-source framework that requires Node.js; choose it if that framework and runtime are a better match for your setup.

Nightwatch is a free open-source option with no paywalls, for readers seeking a no-paywall alternative.

ACCELQ lists web, mobile, and API automation, with features varying by product; consider it if that combination is a priority.

BrowserStack Automate is a paid service with a free trial; its Chrome plan costs $59 a month billed annually for one parallel test. It is worth comparing when a single parallel Chrome test is the relevant starting point.

Squish is a paid alternative with a free trial; compare it when considering a paid testing option outside Maestro's open-source local and hosted model.

Browse Functional Testing Software, End-to-End Testing Software, Device Farm Software, Mobile App Testing Software, and GUI Testing Software for more options by category.

Verdict

Choose Maestro if your team wants readable mobile UI tests, a capable local workflow, and the option to move to hosted parallel runs with useful diagnostics. Its open-source Local tier makes it approachable before paying for Cloud. Look elsewhere if your work depends on cross-browser or desktop app testing, or if the Chromium-only web beta does not meet your coverage needs.