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Comparison

Testmode vs Momentic

Momentic keeps AI tests as plain-English YAML in your repository, run from your CI pipeline. Testmode needs no repository at all. Here is how they differ and when each one is the right choice.

Short answer: Momentic is the right choice for an engineering team that wants AI-written tests version-controlled in the repo and run from CI, like any other code artefact. Testmode is the right choice when there is no repo, no pipeline, and no engineer to own either.

Both describe tests in plain English rather than selectors. The difference is what happens to that description afterwards: Momentic stores it as a YAML file in your codebase and runs it through your pipeline. Testmode keeps it as a sentence and runs it as a service.

At a glance

Momentic Testmode
Test authoring Plain English, written as YAML Plain English
Where tests live Files in your repository In Testmode
How tests run A CLI command in your Node.js pipeline Managed, pointed at a URL
Version control Yes, alongside your code Run history rather than diffs
Scope Web, Android, iOS Web applications
Requires a codebase and CI Yes No
Primary audience Engineering teams Anyone who knows the requirement

Where Momentic is the better tool

  • You want tests in version control. A test that lives in the repo can be diffed, reviewed in a pull request and rolled back with the code it covers. For an engineering team this is a genuine advantage, and it is the reason to choose Momentic.
  • You want tests generated from your own context. Momentic draws on the codebase and on tools like Jira, Linear and Figma, and can generate coverage from pull request diffs. If your requirements already live in those systems, that is real leverage.
  • You need native mobile. Momentic covers Android and iOS, with iOS in beta at the time of writing. Testmode tests web applications.
  • You are running at enterprise scale. SOC 2 Type 2, SSO and RBAC are in place, and the customer list is substantial.

The trade-off in storing tests as code

Keeping tests in the repository is the right call for a team that has one. It is also the assumption that rules Momentic out for a large class of testing work.

Tests as YAML in a codebase mean a codebase must exist, someone must have commit access, and a CI pipeline must run them. If you are testing an ERP system, a low-code application or software a supplier delivered last week, none of those things are available to you. There is nowhere to put the file.

It also puts the tests back behind an engineering workflow. The point of writing a test in plain English is that a non-developer can write it — which is only half true if committing it requires a pull request.

Where Testmode fits better

  • There is no repository to commit to. Supplier-built, low-code and legacy software still needs testing.
  • The person writing the test does not use git. No YAML, no CLI, no pipeline.
  • You have no CI to run tests from. Momentic runs from your pipeline. Testmode runs on its own.
  • You want to start this afternoon. No integration work before the first test runs.

The honest summary

Momentic is the better fit for a well-resourced engineering team testing its own product, and tests-as-code is a real advantage we are not trying to replicate.

Testmode is for the situation Momentic’s model does not reach: software you did not build, tested by people who do not commit code. If you have a repo, a pipeline and engineers, look hard at Momentic. If you have a URL and a person who knows how the software should behave, that is Testmode.