Fast Simon alternatives
12 search personalization tools compared on data from stores OngoingAI observes — including 248 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 | 2,026 | -13 | Magento (Adobe Commerce) | — | 4.9 | Free trial available |
| Boost AI Search & Discovery | 1,577 | -2 | Shopify | 2% | — | — |
 Searchanise Search & Filter | 1,438 | -15 | Shopify | — | 4.7 | Free plan available |
 Nosto | 582 | -16 | Shopify | 2% | — | — |
 Algolia | 343 | -1 | Shopify | — | — | — |
 Wizzy | 85 | — | Shopify | — | — | — |
 { [native code] }){kind=small} Constructor.io | 74 | — | Shopify | 0% | — | — |
| Advanced Woo Search | 2,893 | +107 | WooCommerce | — | — | — |
 Kiwi Size Chart & Recommender | 2,495 | +15 | Shopify | 2% | 4.7 | Free plan available |
 DOOFINDER ‑ Search & Discovery | 2,191 | +36 | PrestaShop | — | 4.7 | Free to install |
 Intelligems: A/B Testing | 2,024 | +4 | Shopify | 4% | 4.8 | Free trial available |
 Tolstoy: Shoppable Video & UGC | 1,059 | -8 | Shopify | 3% | 4.7 | Free plan available |
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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, DOOFINDER, Klevu.
Advanced Woo Search is the most widely adopted Fast Simon alternative we track — observed on 2,893 ecommerce stores, versus 248 running Fast Simon.
Advanced Woo Search gained the most confirmed installs over the last 30 days among the alternatives we track (+107 net confirmed stores).
Intelligems holds the highest rating among well-reviewed alternatives — 4.8 out of 5 across 190 reviews.
Klevu, Searchanise Search & Filter, Kiwi Size Chart & Recommender advertise a free plan or free tier.