Skip to main content
All comparisons

Stunt Double vs Momentic

Momentic is an AI end-to-end testing platform for web, iOS and Android. You describe tests in plain English, they live in your repository as YAML, and an agent runs them on hosted browsers, emulators and simulators and repairs them when the page changes. It gates merges in CI, posts a status comment on pull requests, and has an MCP server for coding agents. Mo, its AI QA agent, explores a build without written tests.

Side by side

Every fact about Momentic links to the public page it came from, checked on October 31, 2026. Pricing and features change, so check their site before you decide.

What it tests

Momentic
End-to-end regression tests written in plain English and stored as YAML, with self-healing steps; plus Mo, an AI QA agent that explores a build.Source, October 31, 2026 (opens in new tab)
Stunt Double
Checklist runs (pass or fail per requirement, with a screenshot and the reasoning), interviews with actors, design reviews against your guidelines, and triaged feedback.

Real browser on live sites and preview deployments

Momentic
Yes, on hosted browsers, and on Android emulators and iOS simulators. Its docs show a suite running on each pull request’s Vercel preview URL.Source, October 31, 2026 (opens in new tab)
Stunt Double
Yes. An actor drives a real browser on any URL, including a preview deployment. Public URLs work on every plan; Startup and up add private URLs, signed-in credentials and an email inbox.

Figma prototypes

Momentic
Not confirmed from their public pages
Stunt Double
Yes. Actors go through Figma prototypes, and design reviews run on Figma frames, from the app or the Figma plugin.

Who does the testing

Momentic
An agent that runs the tests you describe, and Mo, which explores as a QA engineer would.Source, October 31, 2026 (opens in new tab)
Stunt Double
Actors: AI users you cast with a role and a goal. They use the product and report what they did, step by step. Behavior, not opinions.

MCP server

Momentic
Yes, a local MCP server for Claude Code, Cursor and Codex to write, run and debug tests, and a separate one for mobile.Source, October 31, 2026 (opens in new tab)
Stunt Double
Yes, a hosted MCP server on every plan, Free included. It creates and runs checklists and interviews, and reads the results.

Pull request comments

Momentic
Yes. The GitHub App posts a status comment on the pull request that updates in place.Source, October 31, 2026 (opens in new tab)
Stunt Double
Yes. With GitHub connected, a checklist runs on a pull request’s preview deployment and posts its results on the pull request, and workflows can start on GitHub events.

Pricing model and entry price

Momentic
Usage-based credits, no per-seat price. Free plan with 2,000 credits a month. Pay-as-you-go from $125/mo with 10,000 credits. Enterprise priced on request.Source, October 31, 2026 (opens in new tab)
Stunt Double
Free plan for one person: two actors and 60 minutes of runs a month, no card. Solo Trial $9/mo for one person, up to three months; Hobby $79/mo for a team of three.

Choose Momentic when

  • You want a deterministic regression suite in your repository that gates every merge.
  • You test native iOS and Android apps as well as the web.
  • Your engineers write and maintain tests from Claude Code, Cursor or Codex.

Choose Stunt Double when

  • You want to watch a first-time user with a goal go through the flow, step by step with their reasoning.
  • You want interviews with actors cast as your users as well as checks on the built product.
  • Designers, researchers and product managers write the requirements, not only engineers.

Sources

Public pages from Momentic, read on October 31, 2026. If something here is out of date, tell us and we will correct it.

Keep reading

Other comparisons

Get started

See it on your own product

The Free plan is one person, two actors and 60 minutes of runs a month, with no card. Point an actor at a URL and read what it did.

Start free