TesterArmy raises $1.2M to build the next generation of software testing

I'm excited to share that we've raised $1.2M in pre-seed funding for TesterArmy.

The round includes Script Capital, Eight Capital, AIP Seed, and angel investors including Guillermo Rauch (Vercel), Charlie Cheever (Expo), Walden Yan (Cognition), Theo Browne (T3), Zeno Rocha (Resend), and many more.

We are building AI agents that test web and mobile apps, helping teams find bugs before they reach their users. This is a meaningful step for us, and I want to share why we are working on this and thank the people backing us.

Why we are building TesterArmy

Oskar and I spent years building mobile apps where quality mattered. Testing was always one of the biggest bottlenecks. You could finish a feature and still have a lot of work left before you felt comfortable shipping it.

Does signup work? Can users onboard? Did anything else break?

Those questions have not gone away with coding agents. A change can be quick to write and still take time to check. Reading the code only gets you so far. Eventually, someone has to open the app and use it.

That's why we're building TesterArmy.

Let the agent do the clicking

Tell TesterArmy what someone should be able to do in your app, such as creating an account and inviting a teammate. Our agents open the app in a browser or on a mobile device, work through the flow, and check that it behaves as expected.

You can run those checks on a pull request before merging, or have your coding agent run them as it works. If something breaks, you get the steps that led to it, screenshots, and a recording to help you reproduce and fix it.

Teams at Resend, bolt.new, and Nando's use TesterArmy every day to test their web and mobile apps. Novu cut flaky tests in half and merges about 30% faster. Juno reports shipping PRs 10× faster and saving two days of manual testing per week.

The people backing us

We are grateful to the investors and builders backing TesterArmy:

• Y Combinator
• Script Capital
• Eight Capital
• AIP Seed
• Guillermo RauchVercel
• Charlie CheeverExpo
• Walden YanCognition
• Theo BrowneT3
• Zeno RochaResend
• Adam PietrasiakScreen Studio
• Austen AllredGauntlet AI
• Fernando RojoVercel
• Daniel DhawanRork
• Fryderyk WiatrowskiViktor
• Mike GrabowskiCallstack
• Tomasz KarwatkaCatch The Tornado
• Piotr KarwatkaCatch The Tornado
• Michał PierzchałaCallstack
• Bartek PucekThe Thinking Company
• Benedict ChanLightsprint
• Sarup BanskotaCodeCrafters

And many more.

What makes this particularly meaningful for us is having the support of people building the tools developers use every day. Their experience across web, mobile, and AI is closely connected to what we are working on at TesterArmy.

Thank you to everyone backing us, using TesterArmy, reporting bugs, and helping us make it better.

What we want to make possible

We want teams to be able to check their apps as fast as they can change them. That means testing that fits into everyday development, covers the flows users depend on, and gives engineers enough evidence to act when something fails.

Our next big focus is launching e2e, an open-source AI testing framework. Our ambition is to make it the default tool for humans and agents to build tests across any kind of software.

If you are building a web or mobile app, try TesterArmy. Start with a flow you still test by hand.

Join us

We're excited to spend our days building TesterArmy. We're a small team focused on helping developers ship with confidence, and we'll be adding more people to the team soon. If you care about AI and developer tools and want to build with us, we'd love to connect.

Show us what you've built: join@tester.army

With gratitude and excitement,
Szymon & Oskar