TesterArmy (YC P26)

QA agent that tests your app like a real human. Backed by @ycombinator

Join our community:

[TesterArmy (YC P26) @TesterArmy]

Say hello to TesterArmy (YC X26)!

Our mission is to change how AI-native teams tests their apps.

→ Tests every Pull Request
→ One-click integration with GitHub and Vercel ▲
→ Explores pages, clicks buttons, fills forms
→ Reports back actionable feedback

[TesterArmy (YC P26) @TesterArmy]

this is what AGENTIC UI testing looks like

➡️ testing @kick on Android

[Oskar @o_kwasniewski]

Testimonials for @TesterArmy just landed 👀

[Dima Grossman @dimagrossman]

Just onboarded @TesterArmy, a master class in onboarding experience. Got my first e2e test running for our dashboard in less than 2 minutes, and the thing just worked. Created a Novu account with an embedded email inbox, verified the account via email, did the requested actions, and captured an image as proof. 2 hours later, connected their CLI with built-in skills, ran Cursor to create focused regression tests for key paths, and it worked.

Bravo. This is what I imagined agentic end-to-end testing to look like.

[Oskar @o_kwasniewski]

it’s wild to see Fortune 500 and unicorn companies signing up to try @TesterArmy - all inbound.

and we’re just getting started.

[TesterArmy (YC P26) @TesterArmy]

@threepointone @aidenybai 🙋‍♂️

[TesterArmy (YC P26) @TesterArmy]

🔥

[Oskar @o_kwasniewski]

automated testing by AI AGENTS is the future of QA

[TesterArmy (YC P26) @TesterArmy]

@appjsconf 🫶🫶

[TesterArmy (YC P26) @TesterArmy]

@appjsconf Come and say hi to @krzysztof_moch from team 👋

[TesterArmy (YC P26) @TesterArmy]

Happy to announce that we are sponsoring @appjsconf this year! ✨

TesterArmy comes with first-class integration for testing Expo and React Native apps.

[Y Combinator @ycombinator]

TesterArmy is the simplest way to QA your website or mobile app.

It runs real tests across browsers and devices, catches regressions on every PR, generates tests from natural language, and much more.

Try now and start testing in minutes: @TesterArmy

[Oskar @o_kwasniewski]

if you are still testing apps manually in 2026 you’re ngmi

[TesterArmy (YC P26) @TesterArmy]

testing your onboarding should be AUTOMATED

[Oskar @o_kwasniewski]

seeing 15+ companies trust @TesterArmy every day to catch issues before they ship is insanely rewarding 😁

soon, it’ll be your agent’s default choice for testing.

[TesterArmy (YC P26) @TesterArmy]

@expo Read more here:

https://t.co/8pkJrRJl4n

[TesterArmy (YC P26) @TesterArmy]

We just rolled out official support for @expo EAS!

Run your agentic E2E tests in the EAS pipeline ✨

[TesterArmy (YC P26) @TesterArmy]

🔥🔥

[Szymon Rybczak @SzymonRybczak]

this is what AUTOMATED UI testing looks like

> Sign up and send a message

testing @expensify iOS app with a single prompt

[TesterArmy (YC P26) @TesterArmy]

lets go 🫡

[Oskar @o_kwasniewski]

this is what AGENTIC UI testing looks like

[Oskar @o_kwasniewski]

constantly iterating on @TesterArmy landing page design ✨

[Oskar @o_kwasniewski]

this is what AUTOMATED UI testing looks like

[Oskar @o_kwasniewski]

new @TesterArmy landing page just dropped 👀