Tool profile
Maestro: cost, fit and limits
Maestro is an open-source mobile and web UI testing framework made by mobile.dev in which tests are written as YAML flows, run from a command line or desktop Studio, and optionally scaled on Maestro Cloud's hosted devices with AI support through an MCP server.
What to know first
Maestro starts free: the CLI, Studio, MCP server and local self-healing agents cost nothing when you run tests on your own devices. The paid step is Maestro Cloud at $250 per device per month, billed by the number of concurrent executions. Flows live as readable files in the repository, so developers review them like code. Non-coders will find it less approachable than a recorder, and certifications were not stated on the pages read.
Maestro at a glance
| Maker | mobile.dev, United States |
|---|---|
| Free plan | Yes |
| Entry price | $250 per device per month for Cloud |
| API access | No |
| Category | Best AI Mobile App Testing Software in 2026, rank 6 of 10 |
| Website | maestro.dev |
Who Maestro is best for
Mobile developers
Flows are YAML files kept beside the app code, run from the CLI in CI, and easy to review in a pull request without a separate QA tool.
Teams using AI coding agents
The MCP server lets an agent look at the live screen and write or run flows, which fits developers who already prompt an assistant to produce tests.
Cross-framework app teams
The documentation lists Android Views and Compose, iOS UIKit and SwiftUI, React Native, Flutter and web as supported targets. That breadth lets one syntax serve most app stacks.
Maestro plans and pricing
| Plan | Price | What it includes |
|---|---|---|
| Local | Free and open source | Maestro CLI, Studio, Viewer and MCP server, with self-healing through local agents. You run tests on your own devices and emulators. |
| Cloud | $250 per device per month | Hosted Android, iOS and web devices, parallel runs, unlimited hosted test runs, reporting, CI and pull request integration. A free cloud trial is offered. |
| Enterprise Cloud | Custom pricing | Everything in Cloud plus SSO, premium support, custom contracts, fully managed test cases and a detailed vendor and security review. |
Checked November 2026.
What Maestro does
- YAML flows
- Tests are plain-text files describing taps, inputs and assertions in readable steps, so a reviewer can follow them without knowing a programming language or driver API.
- Maestro Studio
- A visual IDE for Mac and Windows with an embedded emulator, used to explore screens and build flows by clicking, then save them as YAML.
- MCP server
- Exposes Maestro to AI agents so they can look at the live screen, draft test plans and run flows, closing the loop between code changes and tests.
- Device isolation in Cloud
- The cloud documentation says every virtual device is wiped and recreated between tests, which removes leftover state as a cause of flaky results. Teams can also pin locale and fixed regional time zones for localized behavior checks.
- Cloud reporting and flake detection
- The homepage describes video playback, detailed logs and flake detection in Cloud runs, which help a team separate app defects from unstable tests. Cloud also plugs into CI and pull request flows, so results show up where reviewers already work.
How Maestro handles your data
The privacy notice is issued by mobile.dev, last updated June 2026. It states that the company does not process sensitive information and keeps personal data only as long as necessary, deleting or anonymizing it once there is no business need, with backup copies isolated until deletion. The terms ask customers not to submit government IDs, payment card data or health information to the hosted service without written approval. The documentation says cloud devices are wiped between tests. The pages read do not state certifications, hosting regions or any use of test data by AI, so the vendor's policy was not checked for those points.
Where Maestro falls short in practice
- Written for people who edit files. Studio helps, but flows are code in a repository. A QA analyst without a developer to set up the CLI and CI will rely on someone technical.
- Cloud price follows concurrency. At $250 per device per month, ten parallel devices cost ten times as much, so a long suite that needs speed becomes expensive faster than a minutes-based plan.
- Security details are thin on public pages. No SOC 2 or ISO statement, region list or AI data statement appeared on the pages read; the Enterprise plan offers a security review instead.
Works with
Alternatives to Maestro
Maestro: common questions
Is Maestro really free?
The Local option is free and open source, covering the CLI, Studio, Viewer, MCP server and self-healing with local agents when you test on your own devices. Maestro Cloud, with hosted devices and parallel runs, costs $250 per device per month, and a free cloud trial is offered.
How does Maestro Cloud charge for parallel runs?
The pricing page says the monthly price is based on maximum concurrent executions, at $250 per device. More devices let more tests run at once and shorten total time. Hosted test runs are unlimited, and web or Chromium pricing is available on request.
Can an AI agent write Maestro tests?
Yes. Maestro offers an MCP server so an AI agent can look at the live screen and existing tests, then write and run flows. The homepage shows an example prompt asking for tests for a settings screen. Review generated flows before merging them into your suite.
Does Maestro Cloud reset devices between tests?
Yes. The cloud documentation states that every virtual device is wiped and recreated between tests so runs stay isolated and repeatable. It also lets you set Android API levels, iOS models, locale and fixed regional time zones. The pages read describe virtual devices, so confirm real device availability.
What does Maestro say about security and certifications?
The pages read did not state SOC 2, ISO or hosting regions. The Enterprise Cloud plan lists a detailed vendor and security review, and the terms restrict sensitive data such as payment card and health information. Request the security documentation directly before uploading a confidential build.