Should You Use a Review Carousel or Grid?

The carousel-versus-grid debate is one of the most common questions in review display. Both formats have clear strengths, and the right choice depends on your review count, page layout, and where your traffic comes from. Understanding the tradeoffs helps, but ultimately, testing is the only way to know for sure what works for your specific store.

Carousels work well when you have a moderate number of reviews (10 to 50) and want to keep the page compact. They are especially effective on mobile, where horizontal swiping is a natural gesture. A carousel lets you showcase your best reviews without adding significant page length. The downside is that most shoppers only see the first few cards — if your best review is card number seven, it may never get seen.

Grids shine when you have a large review library (50+) and want to create a sense of volume and credibility. Seeing a grid of 20 review cards at once communicates "many people bought and loved this product" in a way that a carousel cannot. Grids work particularly well on desktop where screen real estate is not a constraint. On mobile, grids become long vertical lists, which can push important content (like the add-to-cart button) far down the page.

Eevy AI eliminates the need to choose. The genetic algorithm tests carousels, grids, lists, and sliders against your real traffic and finds the layout that generates the most revenue per visitor. It might even discover that carousels win on mobile while grids win on desktop — and optimize accordingly.