Fast Simon (formerly InstantSearch+) is the leading AI-powered search and discovery platform for Shopify. We implement Fast Simon's search, merchandising, personalisation and collection management features to ensure every customer finds the right product — instantly.
Fast Simon (InstantSearch+) replaces Shopify's native search with an AI-powered search engine that understands intent, handles synonyms and learns from click behaviour. Shopify's default search is keyword-matching only — Fast Simon returns semantically relevant results, reducing zero-result searches and improving product discovery.
On average, 15–30% of Shopify store searches return zero results, representing a significant missed revenue opportunity. Fast Simon's semantic search typically reduces zero-result rates to under 5% by understanding synonyms, misspellings and related product concepts.
Fast Simon analyses individual browsing history, previous purchases and session behaviour to personalise search result ranking for each visitor — showing products more likely to be relevant based on their specific context. This is particularly valuable for stores with large catalogues.
Fast Simon loads asynchronously and is optimised for performance. It typically improves the search experience without adding meaningful page load overhead. Fast Simon also improves collection page speed for stores using their AI sorting features.
Fast Simon reports that stores using their platform see an average of 5–15% improvement in search conversion rates. Given that search visitors convert at 2–4× the rate of non-searching visitors, improving search experience is one of the highest-ROI CRO investments available.
Book a free Fast Simon setup session and see how AI search can improve your store conversion rate.