Loox vs Klaviyo
Side-by-side from the Top 11 rankings of The 11 Best Shopify Apps for Conversion Rate Optimization (2026) and The 11 Best Email Marketing Platforms for Ecommerce (2026). Last verified May 31, 2026.
The short answer
Klaviyo ranks higher on Top 11 (#1 vs #2) for Shopify merchants improving funnel conversion / Ecommerce brands running flows and campaigns. Unbeatable Shopify data integration for powerful segmentation.
At a glance
| Loox | Klaviyo | |
|---|---|---|
| Top 11 rank | #2 / The 11 Best Shopify Apps for Conversion Rate Optimization (2026) | #1 / The 11 Best Email Marketing Platforms for Ecommerce (2026) |
| Score (out of 9.4) | 9 | 9.4 |
| Best for | Visual social proof & reviews | Shopify power users |
| Pricing | $$ ($9.99 to $299.99/mo) | $$$ ($200 to $1,500+/mo) |
| HQ | Tel Aviv, Israel | Boston, USA |
| Founded | 2015 | 2012 |
Loox
The best app for collecting and displaying beautiful photo and video reviews.
loox.app/See full entry in The 11 Best Shopify Apps for Conversion Rate Optimization (2026)
Klaviyo
Unbeatable Shopify data integration for powerful segmentation.
www.klaviyo.comSee full entry in The 11 Best Email Marketing Platforms for Ecommerce (2026)
Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.