Fast Simon
Fast Simon helps eCommerce brands increase revenue by delivering AI-powered search, personalization, and merchandising that turns browsers into buyers. It enables marketers to control product discovery and run on-site promotional strategies without engineering resources.
Last updated Oct 25, 2026 by ATDb automated enrichment · Connections updated Oct 26, 2026
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At a glance
About
Leading AI-powered site search and merchandising platform for mid-market eCommerce merchants, with strong penetration in the Shopify ecosystem
Fast Simon (formerly InstantSearch+) is an AI-driven eCommerce optimization platform designed to enhance the shopping experience through advanced site search, product discovery, merchandising, and personalization capabilities. The platform leverages machine learning to deliver highly relevant search results, smart filters, and personalized product recommendations that help online retailers increase conversion rates and average order values. Fast Simon integrates with major eCommerce platforms including Shopify, BigCommerce, Magento, and WooCommerce, making it accessible to a wide range of merchants. From a marketing and advertising perspective, Fast Simon serves as a critical tool for eCommerce marketers by enabling them to control how products are surfaced and promoted on-site, run targeted merchandising campaigns, and personalize the shopping journey based on behavioral data. Its merchandising suite allows marketers to pin products, create promotional banners, and set business rules that align product discovery with marketing goals and promotional calendars. Fast Simon competes in the growing eCommerce search and discovery space alongside players like Searchanise, Klevu, Algolia, and Constructor.io. The company has positioned itself as a mid-market to enterprise solution with a strong presence in the Shopify ecosystem, offering a robust feature set at competitive price points. It serves thousands of online stores globally and has built a reputation for fast implementation and measurable impact on revenue metrics.
Business model
SaaS
Target market
Mid-Market, SMB
What they offer
AI Search
Intelligent site search with natural language processing, typo tolerance, and semantic understanding to surface the most relevant products
Smart Collections & Merchandising
AI-driven product collection pages with business rules, pinning, boosting, and promotional controls for marketers
Personalization
Behavioral personalization engine that tailors product recommendations and search results to individual shoppers
Product Recommendations
Upsell and cross-sell widgets powered by machine learning, deployable across product, cart, and checkout pages
Visual Discovery
Visual search and image-based product discovery capabilities allowing shoppers to find products by image
Filters & Facets
Smart, dynamic filtering options that adapt to search context and inventory to improve product discovery
Analytics & Insights
Merchandising and search performance analytics dashboard to track conversions, click-through rates, and revenue impact
A/B Testing
Built-in experimentation tools to test merchandising strategies and search configurations
Key features
Use cases
Customer segments
Tech & specs
Technology stack
Security & compliance
Deployment
API
Yes