
Retest offers GUI software test automation solutions, focusing on a new testing paradigm called Difference Testing. This approach tests for consistency rather than correctness, allowing for simpler test creation, maintenance, and more robust results. Their products aim to reduce testing effort and cost by automating test generation and focusing on changes. Retest supports DevTesters, Managers, and Enterprises, offering features like AI-based test generation and cross-browser/cross-device testing. They claim their clients service over 83 million people and provide free resources, project control, and improved QA processes.

Retest offers GUI software test automation solutions, focusing on a new testing paradigm called Difference Testing. This approach tests for consistency rather than correctness, allowing for simpler test creation, maintenance, and more robust results. Their products aim to reduce testing effort and cost by automating test generation and focusing on changes. Retest supports DevTesters, Managers, and Enterprises, offering features like AI-based test generation and cross-browser/cross-device testing. They claim their clients service over 83 million people and provide free resources, project control, and improved QA processes.
Founded: Feb 2017 — Karlsruhe, Germany
Core offering: GUI/web test automation using a "Difference Testing" paradigm and deep visual regression
Key products: recheck (Java), recheck-web, recheck.cli, Rehub (artifact/repository) and a review app
Enterprise features: SSO, team management, custom deployment, security/encryption, CI/CD integrations
Funding: Seed announced 2019-03-25 — six-figure seed led by High‑Tech Gründerfonds (HTGF)
GUI and web application test automation, visual regression testing, change detection and maintenance of Golden Masters across CI/CD pipelines.
2017
Software testing / Test automation
six-figure
“Seed round led by High‑Tech Gründerfonds (HTGF)”