Disclaimer: I'm a paid product tester for AppSumo and received this tool for free to provide a detailed review. My opinions are entirely my own, and my compensation is not tied to the rating or taco score I give.

Kalium is a genuinely battle-tested premium WordPress theme — 10 years of development, 50,000+ customers, and a 4.95/5 rating across 2,300+ reviews, which is rare pedigree in this space. It works with Elementor, Gutenberg, and WPBakery so you're not locked into one builder, ships 50+ starter sites across business, portfolio, and e-commerce niches, and is well-optimized for WooCommerce. QA cleared it with no blockers. If you build WordPress sites for clients or yourself, it's a polished, well-supported foundation from a team that's backed it for a decade.