Clerk.io
Depends
Confidence: Medium
Buy if you run a growing online store with real traffic and want search, recommendations, and email from one vendor.
Comparison
Clerk.io and Klevu (now Athos Commerce) both land on Depends.
Buy if you run a growing online store with real traffic and want search, recommendations, and email from one vendor.
Buy if you run a mid-market or larger store with a big or multi-language catalog and in-house technical help.
| Compare | Clerk.io | Klevu (now Athos Commerce) |
|---|---|---|
| Verdict | Depends | Depends |
| Best for | Mid-size stores with steady traffic | Mid-market ecommerce stores |
| Who it's not for | Brand-new stores with little traffic . AI has nothing to learn from | Small Shopify stores . default search suffices |
| Privacy | SOC 2 and ISO 27001 trust center with GDPR DPA; one high-severity 2022 WordPress plugin CVE, fixed in v4.0.0.⁸ | No known public vulnerabilities found in the sources reviewed; no public security page found. |
| Support quality | No direct support evidence found. | No direct user evidence found |
| Public sentiment | Reviews are strong . 4.8/5 on G2 (126 reviews) and 4/5 on Trustpilot . though many testimonials are vendor-published.¹ | Users find the search capable but say it demands in-house technical resources, and ratings slipped after the merger.12 |
| Biggest gotcha | WordPress sites must run plugin version 4.0.0+; older versions carry CVE-2022-3907.⁸ | Entry price ~$449/month requires an annual contract; no free or monthly option found.13 |