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Maestro
Agentic mobile UI testing framework utilizing human-readable YAML and automated AI generation.
About Maestro
Maestro is a high-velocity UI testing framework developed for mobile and web applications. It shifts away from complex scripting languages, allowing teams to write test cases in simple, declarative YAML files that are easily auditable and highly readable.
The framework is optimized for modern development workflows, integrating seamlessly with AI agents via the Model Context Protocol (MCP). It features an intelligent execution engine that continuously monitors application state, inherently resolving timing and synchronization issues that often plague mobile testing frameworks.
Key Features
- Declarative YAML Syntax: Define test flows using human-readable configuration files.
- State-Aware Execution: Automatically waits for elements and animations without hardcoded timeouts.
- AI Agent Integration: Connects with AI tools via MCP for autonomous test generation and debugging.
- Maestro Studio: Visual IDE for inspecting application hierarchies and auto-generating test commands.
- Cloud Execution: Run tests in parallel across massive device matrices on Maestro Cloud.
- Continuous Integration: Native plugins and CLI support for Jenkins, GitHub Actions, and Bitrise.
Pricing
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Local: Free (Open Source). This tier allows you to test for free on your own devices with Maestro Studio or the CLI. Features include Maestro MCP, Maestro Viewer, Maestro Studio, Maestro CLI, and self-healing with local agents.
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Cloud: $250 /device/mo. This tier lets you run Maestro tests in parallel on a purpose-built device cloud, with the monthly price based on maximum concurrent executions. It includes everything in the Local tier, plus hosted Android, iOS, and web devices, parallel runs for faster execution, unlimited hosted test runs, rich test reporting, CI integration, and PR/MR integration.
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Enterprise Cloud: Custom pricing. This tier provides custom contracts, managed testing, security reviews, and dedicated support. It includes everything in the Cloud tier, along with SSO, premium dedicated support, custom contract requirements, fully-managed test cases, and detailed vendor and security reviews.
Pricing last updated: October 28, 2026 at 12:00 AM
Use Cases
- Agentic AI-driven test creation
- Local mobile emulator testing
- Automated regression testing
- CI/CD pipeline gating
Pros & Cons
Pros:
- Highly readable YAML syntax reduces learning curve
- Built-in tolerance for UI delays and animations
- Excellent AI and MCP integration
Cons:
- Maestro Cloud pricing is not fully transparent upfront
- Primarily focused on UI flows rather than deep backend mocking
Integrations
GitHub Actions, Bitrise, Jenkins, GitLab CI, Model Context Protocol (MCP)
FAQ
What languages do I need to know to use Maestro?
No programming language is required. Maestro tests are written in declarative YAML syntax.
Does Maestro support testing on physical devices?
Yes, Maestro can execute tests on connected physical iOS and Android devices, as well as local emulators and simulators.
How does Maestro handle asynchronous loading?
Maestro features a state-aware execution engine that inherently waits for elements to appear and animations to finish, eliminating the need for manual sleep or timeout commands.
What is Maestro Studio?
Maestro Studio is an included visual interface that allows users to interact with their app, inspect the view hierarchy, and automatically generate YAML test steps.
Can AI write Maestro tests?
Yes, Maestro integrates with AI agents via the Model Context Protocol (MCP), allowing language models to inspect app hierarchy and generate functional test scripts automatically.
Does Maestro require app recompilation?
No, Maestro interacts directly with the accessibility layers of iOS and Android, requiring no SDKs or application code modifications.
Last edited
October 28, 2026 at 8:38 AM by Venkatraman Chandrasekaran
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