Multilogin Overview
Multilogin is the Estonian veteran that largely started the antidetect category. Its key feature is two proprietary browser engines: Mimic (Chromium-based) and Stealthfox (Firefox-based), giving more fingerprint variety than single-engine competitors.
The new generation, Multilogin X, is cloud-based: profiles sync across devices, with a web interface, team roles and permissions. Automation via API, Selenium, Playwright and Puppeteer.
Caveat: historically one of the priciest tools in the niche; the €3.99 entry appeared with new compact plans, but working plans for dozens of profiles cost noticeably more.