This article contains affiliate links. If you buy through them we may earn a commission, at no extra cost to you — see our Affiliate Disclosure.
What Is X | The Theme?
X (sold as “X | The Theme”) is a WordPress theme from THEMECO built around their own Cornerstone page builder, rather than relying on a third-party builder like Elementor or WPBakery. It’s sold over 226,000 times on ThemeForest and holds a 4.76 out of 5 rating from more than 6,700 reviews, at $89 for a regular license.
Key Features
Four Design Stacks, Not One Fixed Look
X ships with four distinct “stacks” — Integrity, Renew, Icon, and Ethos — each a genuinely different visual design system rather than a colour-swapped variant of the same template. Switching stacks changes typography, spacing, and component styling as a set, backed by 30+ ready-made demo sites across them.
Cornerstone Page Builder
Cornerstone comes bundled rather than sold separately, with over 100 prefab elements and its own component system that supports parameters for building repeatable design patterns — useful if you’re building out several similar pages (service pages, team members, case studies) and want consistent structure without rebuilding each one from scratch.
Dynamic Content and REST API Integration
X’s looper system can pull in and repeat content dynamically, including from external REST APIs — a more developer-oriented feature than most page-builder themes offer, useful if you need to display data that doesn’t live in standard WordPress posts.
WooCommerce Support Per Stack
Each of the four stacks has its own shop layout, plus the usual WooCommerce essentials: product tabs, related products, and upsell/cross-sell management.
Specifications at a Glance
Where X Makes Sense
The four-stack system is the real differentiator: if you want genuinely different design directions available in one theme rather than variations on a single template, X covers more visual ground than most competitors. The REST API looper support also makes it a reasonable pick for sites that need to display external data, which is unusual for a page-builder theme.
Worth Knowing Before You Buy
Cornerstone is a capable but distinct builder with its own way of doing things — if your team already has deep Elementor or WPBakery experience, expect a real learning curve rather than a drop-in replacement. It’s also priced above most competitors in this review series ($89 vs. $59–$69), which is worth weighing against how much you’ll actually use the stack-switching and dynamic-content features.
Final Verdict
X earns its higher price with genuine design flexibility (four real stacks, not reskins) and a page builder with more developer-facing capability than most theme-bundled builders offer. It’s a stronger fit for agencies building varied client sites than for a single straightforward store or blog.