Fast Simon AI Search & Filters

by Fast Simon · Free plan available.

4.8 (289) on Shopify Used by 2,298 Shopify stores

See which stores use it — by country, co-installs & competitive gaps → Unlock with Pro

Manage this app

Verify your developer profile to earn a badge and build trust for your app.

Maximize Your Store Sales & ROI with AI Agents, Search, Merchandising, and Personalization.

Get it on Shopify →

About Fast Simon AI Search & Filters

We're passionate about delivering a cutting-edge eCommerce experience for our clients. That's why we've developed a revolutionary platform that integrates shopper behavior, store signals, and agentic AI to help you optimize your merchandising, navigation, search filters & AI shopping agents. Fast Simon powers shopping optimization through NO-CODE front end, API, JS SDK, REACT Components and Hydrogen. Let us help you take your eCommerce business to the next level. Search & Discovery directs shoppers with peak speed and accuracy based on intent Merchandising engages and inspires shoppers while optimizing inventory & sales Personalized Search & Filters that boost customers' conversions Interact with shoppers using AI shopping agents on your store's own data. Search Audiences lets you target and personalize the entire customer journey Show more Show less

Last verified: July 12, 2026 · Fresh

App details

Developer: Fast Simon
Category: Marketing & conversion
Pricing: Free plan available
Rating: 4.8 (289) on Shopify

Key features

Maximize Your Store Sales & ROI with AI Agents, Search, Merchandising, and Personalization

Integrations with:

Checkout, Klaviyo, Langify, Okendo, Stamped.io, TapCart, Yotpo

4 plans · starts free · 14-day free trial

Free

$39.99/month

$99.99/month

$299.99/month

Plans and prices as listed on the Shopify App Store.

Ratings & reviews

based on 99 Shopify App Store reviews

Use the arrows to read individual reviews

FAST SIMON is very easy to use, but really powerful solution for merchants to improve Search System. It covers not only product search but do help boost CRM and SEO too. The help center is very professional. I recommend it.

— andar JAPAN

empty

— Quick Candles

I've worked with Fast Simon for years and it is very user friendly! They are constantly making improvements and updates to the apo, Our CS Manager and their dev team respond so quickly to any issues that arise.

— St. John Knits

Best customization out of every search results page app I've used. support team is experienced and act fast with no let downs very professional. i hope i can get qualify for their new features one day. it doesn't get better this i've tried every single search results page on the Shopify app store. this one is unbeatable.

— Astricate

Their support is excellent!

— La Canadienne

Exceptional support and technical expertise. Whenever I have requested help, I receive prompt support and always a resolution - first time. Highly recommend!

— Cerqular Hong Kong

Rest API is not consistent, if you are planning to use for iOS and Android app then it is not worth.

— Kitchen Switchen

Really loved this app to begin with, but recently became disappointed in a few things that led me to cancel. Firstly, the sudden price increase - from $140/yr to $400/year?! - for the same level of features. Once it expired, the regular search functionality was disabled/broken on my website. I lost a lot of business over the weekend because no one could search my products. Their customer support r...

— Claire W Design

I did not fully explore the app but find the demand for customer geo-location data on sign up, unacceptable. There is no reason for this app to have that information, why do they need to know a 10 digit grid for my customers - I don't need to know it so why do they make this a condition of using their app?

— ukeod

Would NOT recommend. This app ads code to your site that takes developer support to delete. Bad business! Subpar customer service and the functionality is really bad. The look and feel is not responsive either.

— Halberstadt's Bismarck

Overview 1 / 10