Croct

Croct is a headless personalization and A/B testing platform that makes server-side content decisions per visitor — avoiding the "flash of default content" problem common with client-side personalization — integrating with existing CMSs like Storyblok and Sanity. It uses a query language (CQL) for building visitor segments, supports Bayesian A/B and multivariate testing, builds real-time user profiles, and integrates with commerce platforms, analytics tools, and CRMs. SDKs cover Next.js, React, Vue, Nuxt, and other major frameworks, with setup described as requiring just one command. A free tier supports up to 10,000 monthly active users with basic features; paid plans start at $100/month (annual billing) for 20,000 users, with custom pricing beyond that. Good fit for a marketing or growth team running personalization and A/B tests on a site built with a modern JS framework, who wants server-side decisions rather than a visible content flash.