QA is the work everyone skips when they’re shipping fast. TesterArmy, a Y Combinator startup that just launched, aims to make skipping it unnecessary by sending an AI agent to test your web and mobile app the way a real user would — clicking through pages, filling forms, and handling login flows including OAuth and OTP.
## What TesterArmy does
You describe the tests in plain English and the agent navigates the live app, then hands back screenshots, recordings, and actionable bug reports. It connects as a GitHub App to run automatically on every pull request, can be scheduled to monitor production on a recurring basis, or fire from any CI pipeline via webhook. The idea is to catch broken flows before users do, without a human writing or maintaining test cases.
## No scripts, just plain English
The selling point is what you don’t have to build: no SDK, no test scripts, no test infrastructure to keep alive. Traditional end-to-end suites rot the moment the UI changes; an agent that reads the screen and acts like a person is meant to survive those changes. It’s a small San Francisco team betting that AI-native QA replaces brittle automation.

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