Overview
the software verification layer for the agentic coding era
Founders & team
Previously Tester Army, TesterArmy
Szymon Rybczak
Founder/CEOCo-founder & CEO of TesterArmy (YC P26).
Youngest ever contributor to React Native (at 16), maintained open-source libraries with 3M+ downloads weekly.
Worked on v0 iOS with Vercel. 5+ years of commercial experience. Working professionally since 14.
Oskar Kwaśniewski
FounderCo-founder & CTO of TesterArmy (YC P26).
React Native Core Contributor (100+ PRs merged), created 5+ open-source libraries with over 2.5M downloads.
Worked with Vercel, Meta, AT&T, and more.
Founded 2026 · Source ↗
Sources & observations
Y Combinator
Profile depthenriched profile
Website observationwebsite reachable
Last website check2026-11-11
Location · source statedWarsaw, Masovian Voivodeship, Poland; Remote
Pricing evidenceNo pricing page confirmed
Maturity: Not assessed · 3 of 6 areas documented
Source-based assessment · automated evidence rules
The retained text does not establish product availability or customer use.
Maturity is an evidence-based assessment, not a success rating. It may understate the current stage where evidence is limited. Coverage records documented areas, not a complete or independently audited company history.
Stage definitionsindependent websitesource corroborationreachable websitedescriptive evidencesourced peoplesourced founding yeardocumentation observed