Fast Simon alternatives
12 search personalization tools compared on data from stores OngoingAI observes — including 278 running Fast Simon. Adoption, platform split and growth, not vendor claims.
| Alternative | Stores observed | 30d net | Primary platform | Overlap | Rating | Pricing |
|---|---|---|---|---|---|---|
 Klevu ‑ AI Search & Discovery | 2,869 | -29 | Magento (Adobe Commerce) | — | 4.9 | Free trial available |
 Searchanise Search & Filter | 2,453 | +29 | Shopify | — | 4.7 | Free plan available |
| Boost AI Search & Discovery | 2,267 | +2 | Shopify | 2% | — | — |
 Nosto | 668 | +4 | Shopify | 2% | — | — |
 Algolia | 393 | — | Shopify | — | — | — |
 Wizzy | 89 | +2 | Shopify | — | — | — |
 { [native code] }){kind=small} Constructor.io | 84 | — | Shopify | 0% | — | — |
| Advanced Woo Search | 3,833 | +4 | WooCommerce | — | — | — |
 Kiwi Size Chart & Recommender | 3,579 | +25 | Shopify | 3% | 4.7 | Free plan available |
 DOOFINDER ‑ Search & Discovery | 2,692 | +9 | PrestaShop | — | 4.7 | Free to install |
 Intelligems: A/B Testing | 2,385 | +48 | Shopify | 4% | 4.8 | Free trial available |
 Smart Product Filter & Search | 1,472 | +18 | Shopify | — | — | — |
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Frequently asked questions
Ranked by observed store adoption, the most widely used Fast Simon alternatives are Advanced Woo Search, Kiwi Size Chart & Recommender, Klevu, DOOFINDER.
Advanced Woo Search is the most widely adopted Fast Simon alternative we track — observed on 3,833 ecommerce stores, versus 278 running Fast Simon.
Intelligems gained the most confirmed installs over the last 30 days among the alternatives we track (+48 net confirmed stores).
Intelligems holds the highest rating among well-reviewed alternatives — 4.8 out of 5 across 196 reviews.
Searchanise Search & Filter, Kiwi Size Chart & Recommender advertise a free plan or free tier.