TesterArmy

Active

Test your app with AI, catch bugs before users do

Spring 2026Founded 20264 peopleSan Francisco, CA, USA; Remote

tester.army ↗LinkedIn ↗X ↗

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AI insightcan contain mistakes

AI Testing AgentSaaSEngineering teams, QA, product teamsHigh competition

Moat

Natural language test description parsing; session handling and browser automation; CI/CD integration.

Key risk

False positives/negatives in visual testing; slow iteration on test coverage; competition from traditional test automation; unclear ROI vs manual testing.

Why now

Rise of AI-driven development; demand for faster feedback loops; agent maturity enabling complex test logic.

Competitors

Selenium, Cypress, Playwright, traditional QA platforms

About

TesterArmy is an AI agent that tests websites and mobile apps. It monitors production on a schedule and runs automatically on every GitHub Pull Request, delivering screenshots, recordings, and actionable bug reports. Describe tests in plain English. The agent handles login flows, OAuth, and OTPs, no scripts to write or maintain. We catch the regressions and UX issues that code review misses.

Founders · 3

Oskar KwaśniewskiFounder

Senior Software Engineer with passion to open source. Founder of TesterArmy

LinkedIn ↗X ↗

Piotr MatyjasikFounder

Co-founder & CPO at TesterArmy

LinkedIn ↗X ↗

Szymon RybczakFounder

Co-founder & CEO of TesterArmy (YC P26). Previously worked on React Native infrastructure and open source at Callstack, including on-device LLMs.

LinkedIn ↗X ↗

Launch

Launched on Y Combinator · May 2026

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Automated testing for web and mobile apps

TesterArmy is an AI-powered QA agent that tests web and mobile apps by simulating real user interactions (clicking, typing, navigating). Users describe what to test in natural language; the agent runs, captures screenshots and recordings, and provides actionable bug reports, aiming to catch UX issues beyond scripted checks. Launch day: 30% subscription discount with code LAUNCH30.

Formerly “Tester Army”

B2B Engineering, Product and DesignArtificial IntelligenceDeveloper ToolsB2B

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