# TesterArmy

> TesterArmy is a Y Combinator-backed (P26) startup building AI agents that test web and mobile apps the way a human would. Teams describe tests in plain English; the agent launches a real browser or device, clicks and types through user flows, handles logins, OAuth and OTP, then returns screenshots, recordings and actionable bug reports. It runs on every GitHub pull request and on a schedule against production, aiming to catch broken flows before customers do.

- **Founded:** 2026
- **Headquarters:** San Francisco, California, United States
- **Founders:** Szymon Rybczak (Co-Founder & CEO), Oskar Kwaśniewski (Co-Founder & CTO), Piotr Matyjasik (Co-Founder)
- **Team size:** 4
- **Products:** AI QA Agent, GitHub App / PR Testing, Scheduled Production Monitoring, CLI, API & Webhooks
- **Notable:** Accepted into Y Combinator's Spring 2026 (P26) batch, 30+ teams using the product daily around its Launch HN, Founders are React Native core contributors with 100+ merged PRs and 2.5M+ open-source downloads

## Products & services

- **AI QA Agent** — An AI agent that launches a real browser or device and clicks, types and navigates through your app like a human, evaluating results with vision and accessibility APIs. Tests are written in plain English - no selectors or scripts to maintain.
- **GitHub App / PR Testing** — Runs automatically on every pull request, generates a test plan from the code changes, and posts pass/fail results, recordings and failure context as a PR comment.
- **Scheduled Production Monitoring** — Runs tests on a schedule against production and alerts teams via Slack or Discord when a user flow breaks.
- **CLI** — Open-source command-line tool (testerarmy on npm) to run the AI QA agent locally or in CI pipelines.
- **API & Webhooks** — Programmatic access to trigger tests and integrate TesterArmy into custom pipelines and workflows.

## Achievements

- Accepted into Y Combinator's Spring 2026 (P26) batch
- 30+ teams using the product daily around its Launch HN
- Founders are React Native core contributors with 100+ merged PRs and 2.5M+ open-source downloads
- Caught real production bugs for customers: timezone bug in a booking flow, checkout total miscalculation, AI chat tool-calling failure, and agent-orchestration regressions
- Novu ran its first end-to-end test in under two minutes

## Latest updates

- **2026-03** — Team relocated from Poland to San Francisco to join Y Combinator's P26 batch; raised $130K seed from YC.
- **2026-03** — Launched publicly with a Launch HN, reporting 30+ teams using the platform daily.

## Links

- Website: https://tester.army
- LinkedIn: https://www.linkedin.com/company/testerarmy
- Twitter/X: https://x.com/testerarmy
- GitHub: https://github.com/tester-army

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Profile page: https://yespress.io/testerarmy-yc-p26
Published by YesPress — https://yespress.io
Last updated: 2026-07-30