Companies

TesterArmy

tester.army

TesterArmy uses AI browser agents to test websites and mobile apps without maintained scripts.

HQSan Francisco, California, United States
Employees1-50
Jobs checked 2h ago
Developer ToolsAI AgentB2B SaaS

About

TesterArmy builds a QA testing platform for teams developing websites and mobile applications. Its AI-powered browser and device agents run real tests from plain-English instructions, producing screenshots, recordings, and pass/fail or bug reports without requiring teams to maintain traditional test scripts.

Market

TesterArmy competes in AI-native and agentic end-to-end QA automation for web and mobile applications. It positions itself around real browser/device agents that interpret plain-English instructions, interact like human users, handle authentication, and produce visual evidence rather than requiring conventional selector-based test scripts. Its differentiation is the combination of no-code natural-language testing, web and mobile coverage, a developer-oriented CLI, and automated pull-request and production checks.

Target Customers

TesterArmy is aimed at software engineering and QA teams at startups, small product teams, and modern web/mobile companies that ship frequently through GitHub and need automated regression coverage without maintaining scripts. Its enterprise options—custom limits, self-hosting, SSO, and dedicated support—also indicate suitability for larger engineering organizations.

At a Glance

Problem

Software teams need to verify that web and mobile applications work reliably before deployment and after changes, but conventional QA often requires engineers to write and maintain brittle, code-heavy test scripts. TesterArmy addresses the resulting testing bottleneck by making browser and device checks easier to define and repeat, with the main use case being automated validation of every GitHub deployment before a pull request is merged.

The core economic pain is the engineering time and release risk involved in manually checking user flows or maintaining test automation. A failed or overlooked flow can reach users, while repetitive regression testing slows delivery. TesterArmy’s positioning suggests that teams can shift this work from manual QA and custom scripting to repeatable agent-driven checks that run on demand, on a schedule, or as part of deployment workflows.

Product / Service

TesterArmy is an AI-powered QA testing platform built around browser agents. Users describe what they want tested in plain English rather than writing test scripts; an agent then launches a real browser or device, navigates, clicks, types, handles authentication flows such as OAuth and OTP verification, and returns pass/fail results with screenshots and recordings as visual evidence. The service is available through a web dashboard and CLI, enabling both interactive use and integration with engineering workflows.

The benefit is human-like end-to-end testing with less coding and maintenance, plus clearer evidence when something fails. Teams can give the agent access through its CLI, run tests on a schedule or through GitHub, and automatically check deployments before merge, helping catch regressions earlier without requiring an engineer to manually repeat every user journey.

Market

TesterArmy competes in AI-assisted software quality assurance and end-to-end test automation, particularly the market for browser-based testing integrated into continuous integration and deployment. Its differentiation, based on the available description, is the combination of natural-language test authoring, real-browser or device interaction, authentication support, and recorded visual evidence. The available research does not name specific competitors, so it is best characterized as an entrant or product in the broader QA automation and browser-testing category rather than compared with a confirmed competitor set.

The company has evidence of early product traction: it reported scaling from zero to more than 30 teams using the product every day, and described an engineer workflow that combines its CLI with scheduled or GitHub-triggered test runs. That indicates active usage rather than a purely pre-launch product, although the available research does not disclose revenue, customer names, pricing, or funding, so revenue status and commercial scale cannot be determined.

Founders & Leadership

Szymon RybczakFounder
Co-Founder & CEO
Oskar KwaśniewskiFounder
Co-Founder / CTO
Sławomir KamińskiCMO

Funding History

2026-04
Pre-Seed$500K

Y Combinator

Recent News

2026-07-22product
Introducing Scout: API Testing Built for AI Agents

TesterArmy launched Scout, an open-source CLI that gives coding agents a guarded harness for testing APIs. The announcement says Scout can use an OpenAPI specification to sweep, fuzz, and record findings, including bugs in the Swagger Petstore.

2026-07-17partnership
TesterArmy Now Supports Netlify Deploy Previews

TesterArmy announced a Netlify integration that automatically runs regression tests and AI-powered exploration against successful Deploy Previews. Results are returned to GitHub, without requiring a separate GitHub Actions workflow or manually copying preview URLs.

2026-07-16
TesterArmy: How Do We Use TesterArmy at TesterArmy?

TesterArmy described how it dogfoods its own QA agent by testing its dashboard and every pull request against preview deployments. The company says the agent helps identify regressions before code is merged and supports dynamic tests based on pull-request changes.

2026-05-28
Y Combinator Launches of the Week

Menlo Times included TesterArmy in its roundup of Y Combinator launches, describing it as an AI agent that tests websites and mobile apps.

2026-05-25product
TesterArmy: Test your app with natural language

TesterArmy launched on Y Combinator’s Launch YC platform as an AI-powered QA agent for web and mobile apps. Users describe tests in natural language, while the agent clicks, types, and navigates like a real user, producing screenshots, recordings, and bug reports.

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Business Model

TesterArmy appears to monetize through a self-serve SaaS/software model, selling access to its AI-powered QA testing platform. Public evidence does not specify pricing tiers or other revenue streams.

Products

AI-powered QA testing platform for web and mobile applicationsNatural-language browser/device test execution with screenshots, recordings, and pass/fail reportsTesterArmy CLI (`testerarmy`/`ta`) for prompt-based checks and reusable Markdown scenariosWeb dashboard and API/CI integrations for GitHub deployments, pull requests, scheduled jobs, and mobile app builds

Customers

VercelMetaAT&T

Tech Stack

AI-powered browser agentsReal browser and device automation for web and mobile appsNatural-language/plain-English test promptingnpm-based CLI with Markdown test scenariosGitHub pull-request and deployment integrationsWeb dashboard and API/OpenAPI interfacesOAuth and OTP authentication automation

Competitors

Momentic
mabl
QA Wolf