--- title: "Momentic vs Autonoma" description: "Compare Momentic and Autonoma: open-source agents that explore your app with no test code, against a YAML suite your coding agents write and CI runs." canonical: "https://momentic.ai/comparison/momentic-vs-autonoma" last-updated: "2026-08-28T19:04:06-07:00" --- # Momentic vs Autonoma URL: https://momentic.ai/comparison/momentic-vs-autonoma comparison / momentic-vs-autonoma Autonoma plans the flows from your repo, then its agents use your app without writing a test file. Momentic writes each flow as YAML, so your team and your agents can read it, change it and gate on it. [Try for free](https://app.momentic.ai/signup) [Get a demo](/sales) Web, iOS and Android · CLI · CI · MCP ## At a glance. How Momentic and Autonoma compare across the dimensions teams evaluate most. | Category | Momentic | Autonoma | | --- | --- | --- | | Licence | Commercial, free tier available | Open source | | Platforms | Web, iOS and Android | Real browsers and devices, for web, iOS and Android | | Authoring | Cursor, Claude Code or Codex write the YAML into your repo over MCP | The platform maps your repo and generates a test plan; no test code | | Where tests live | YAML files in your repo, reviewed in the pull request | No file in your repo. The platform generates the plan and keeps it | | What a reviewer reads | The YAML diff in the pull request | The agent's run and its result | | Determinism | The same steps run the same way, with self-healing when the UI moves | Agents navigate the app each run | | CI | npx momentic run, non-zero exit code, JUnit XML, sharding | Checks on every pull request, paid in credits. 100K free, then $499 per month | | Track record | Notion, Retool, Webflow, Xero and Quora | Early stage, open source community | | Best fit | A suite you own, gate and extend | First coverage from a generated plan | ## What Autonoma does Autonoma is an open-source testing platform. You connect a GitHub repository, it maps the pages and flows, and it generates a test plan in minutes. Its agents then use the app rather than read the code: they open real browsers and devices, click through the flows, fill the forms and report regressions on every pull request. There is no test code to write. It is open source, so you can host it and read the code, which matters if your policy requires that. ## Where Momentic differs. 01 ### The test is written down Momentic stores each flow as YAML in your repo, so a reviewer sees the steps and the assertions, and a coding agent edits one line instead of re-generating a plan. 02 ### A repeatable gate An agent that explores can reach a different place each run. Momentic runs the steps you approved, heals the locator when the UI moves, and fails the build only when the assertion fails. 03 ### Proven at enterprise scale Notion, Retool, Webflow, Xero and Quora gate releases with Momentic, across thousands of parallel browsers and hundreds of parallel iOS simulators and Android emulators. Quora cut a 7-hour QA pass to 30 minutes. Autonoma is early, and prices that scale in credits. ## Ten ways to test an app without test code. Autonoma explores an app and plans flows without test code. Read the authoring column first. The useful distinction is whether the run leaves a file your team can review and change. | Tool | Authoring | Runs on | Best fit | | --- | --- | --- | --- | | Momentic | Plain-English steps as YAML in your repo. Cursor, Claude Code and Codex write them over our MCP server, and the CLI runs them | Web, iOS and Android; cloud browsers, simulators and emulators | The suite lives in the repo and gates CI, with no framework to maintain | | Autonoma | Open source. The platform plans the flows from your repo, and its agents use the app, so there is no test file to review | Real browsers and devices, for web, iOS and Android | Open-source first coverage, if a generated plan is enough | | Ranger | Scenarios through their CLI. An approved feature becomes a test inside the Ranger suite, which they host | Browsers only; hundreds in parallel on demand | Verifying a browser feature your coding agent just wrote | | Autosana | Natural-language flows in their dashboard. You can opt a repo in to files, and the sync copies them on the default branch only | iOS, Android, mobile web and desktop web; local and cloud runs | Small teams who want the agent to close the loop | | Playwright | Code: TypeScript, Python, Java or C# | Chromium, Firefox and WebKit; your runners | Engineers who want full control and accept selector upkeep | | Maestro | YAML flows | Simulators, emulators and devices; local or Maestro Cloud | Mobile teams who want readable flows and a fast local loop | | Appium | Code, on the WebDriver protocol | iOS and Android, simulators, emulators and devices | Selenium teams extending the same protocol to mobile | | QA Wolf | Their engineers write and maintain Playwright tests for you | Web and mobile web; their infrastructure | Teams with no QA and no capacity to author | | mabl | Low-code recorder aimed at non-technical authors | Web and mobile web; vendor cloud | Authoring leaves engineering, and the tests leave your repo | | BrowserStack | Bring your own Playwright, Selenium or Cypress tests | Real browsers and real devices; vendor cloud | Buying browser and device coverage, not authoring | ## Who should choose which. Choose Momentic Choose Momentic if you want the flow written down, reviewed in Git and used as the merge gate. [Try for free](https://app.momentic.ai/signup) Choose Autonoma Choose Autonoma if you need an open-source platform you can host yourself, and first coverage matters more to you than a test your team can read. Trusted by teams who made the switch. “Momentic gave us a fast and reliable way to validate Poe.com's AI responses, even when they weren't deterministic.” Momoko F. Head of Product Operations, Quora 30 min daily test execution, down from 7 hours 500+ manual test cases replaced 100% critical tests created in one month [30 min daily test execution, down from 7 hours "Momentic gave us a fast and reliable way to validate Poe.com's AI responses, even when they weren't deterministic." Momoko F. Head of Product Operations, Quora](/customers/quora) [8x increase in release cadence "It's like giving someone your QA checklist and watching them execute it for you!" Sriram S. Engineering Lead, Source Control, Retool](/customers/retool) [80% faster release cycles "With Momentic, we've caught bugs that would have eluded even our most diligent internal tests." Alex C. CTO, GPTZero](/customers/gptzero) [6x faster end-to-end test creation "We've already seen a 30% decrease in production incidents thanks to Momentic's automated testing." Hanna K. Head of QA, CoverGo](/customers/covergo) [85% reduction in production incidents "Momentic gives us reliable end-to-end coverage, so we can focus on features instead of maintaining tests." Alec H. Staff AI Engineer, Mutiny](/customers/mutiny) [Browse all](/customers) Related comparisons [Momentic vs Ranger](/comparison/momentic-vs-ranger)[Momentic vs Playwright](/comparison/momentic-vs-playwright) ## Frequently asked questions. Is Autonoma open source? Yes. That is its clearest advantage, and it matters if you must host and inspect the tool yourself. Do I write any test code with Momentic? No code. You write plain-English steps, or your coding agent writes them for you over MCP. They are stored as YAML in your repo. Why does a written test matter? A reviewer reads the diff, CI runs the same steps every time, and your coding agent edits one step instead of regenerating a plan. Does Autonoma test mobile apps? Autonoma covers web, iOS and Android on real browsers and devices. Momentic covers the same three platforms from one suite, on hosted browsers, simulators and emulators. The difference is the file. Momentic steps are YAML in your repo, so a reviewer reads the test before it gates the merge. How does Momentic keep tests from breaking? Locators heal as the UI changes, and --ai-select finds an element that moved, so a rename does not fail the build. Still have additional questions? ## Close the feedback loop. See the flow as a file your team reviews in Git. [Try for free](https://app.momentic.ai/signup) [Get a demo](/sales)