Test frameworks and automation

Composal vs Maestro

Maestro favors short declarative flows and black-box UI interaction across mobile and web. Composal provides hosted web Scenarios and exploratory browser sessions with generated reproduction evidence.

See where each fits ↓

Two workflows, side by side

Composal

Composal sends AI browser agents to use your running web app and check the outcomes you care about. Define journeys as plain-English Scenarios, map existing flows with Discovery, or explore for bugs with Deep Scan. Runs keep recordings and reproduction steps so your team or coding agent can investigate a Finding.

Verify documentation →

Maestro

Declarative mobile and web UI testing

Maestro defines automated UI tests as YAML flows and interacts with mobile and web applications through user-visible interfaces. Its docs cover CLI execution, visual test creation, devices and cloud runs.

What each tool does

“With setup” means you supply code or configuration. “Not confirmed” means support for this workflow needs checking with the vendor.

Composal and Maestro workflow capabilities
Workflow	Composal	Maestro
Run browser journeys	Yes Run saved browser Scenarios and return recordings and reproducible Findings.	Yes Runs authored UI journeys across supported mobile and web environments.
Map application workflows	Yes Discovery maps key application areas and user journeys.	Not confirmed Check whether this product includes this workflow in your intended plan and setup.
Explore for unexpected issues	Yes Deep Scan explores the running application and reports reproducible issues.	Not confirmed Check whether this product includes this workflow in your intended plan and setup.
Describe checks in plain English	Yes Author Scenarios around the intended user outcome, then review the steps and expected results.	With setup Write executable tests, scripts, or structured keywords to define the steps and expected results.
Run or inspect from a terminal	Yes Use the CLI to start and inspect verification runs and their Findings.	Yes Execute YAML flows from the Maestro CLI.

Where each fits

Choose Maestro when simple flow files and mobile coverage suit your app-testing needs. Choose Composal when a team wants hosted web QA from saved requirements through exploratory reports and agent handoff.

Try this evaluation

Translate a login, search and access-denied journey into a Maestro flow and Composal Scenario. Compare readability, app setup, cross-device needs and whether each result helps an engineer understand an unexpected behavior.

Coverage: Which user outcomes must this release prove, and which specialist checks must stay in your existing stack?
Setup: Who prepares accounts, test data, permissions and access to the deployment being tested?
Evidence: Can the engineer reproduce a reported failure from the recording and steps, without asking the tester to investigate again?
Ownership: Who updates the checks when the product changes, and can the team review what a passing result actually proves?