Boost AI Search & Filter , 1,839 reviews

Awesome app with all filter options that you could imagine. The support is also amazing. They came back to my request within hours and solved my issue.

Great app. Works well with my shop! The support team is really quick and efficient in helping us to fix any issues.

Very responsive team working behind the app. Would definitely recommend. They will work with you until the desired outcome is achieved and ensure you have what you require. 5 Stars!

I don't have time to write many reviews but I really need to for this app. This filter is by far the most advanced in the Shopify App Store. I have tested them all. This one provides the most flexibility to what is shown in the filter, how the inventory is sorted by the filter, the fact that the shopper can select multiple options at once (such as several different brands), and they will spend a lot of time customizing it to your individual stores needs. They install it for you and in my case we have been working on it and they have added and adjusted many details to get it exactly how I wanted it. It may seem a bit pricy if you have a large inventory, but it is worth the price. The app is outstanding and equally important the service is as well. If your willing to pay extra for a premium filter that can be customized for your site at no additional expense, do anything you need, and handle complex filtering issues (like I needed after outgrowing the abilities of the other filters), then this is the one your looking for! Come check mine out.... www.WhoopsieDaisyClothing.com

Product Filter and Search is an excellent app that we installed very early in our website development. It functions just as it should and seems to be well received by our customers. Good customer support when needed. Thanks Boost Commerce team!

This app has helped us get our site to the level that we want it to be! We have really appreciated the quick responses and help from the support team.

Edit:
Boost has since the issues below provided great support and taken the issues seriously. This app will cost you thousands in lost time and hundreds of thousands in lost sales. Do NOT use it.
Extremely disappointing to see how this company has progressed, as we were happy with this app to start with. Lately we've had issues with how the currency is shown using the filter, the app does not replicate the native Shopify formatting;
After +20 emails, a teams meeting, us finding and deleting faulty code inserted by themselves that they could not find, to having it "escalated" and receiving a video that clearly shows all the errors and a claim that all is fine. The icing on the cake is a support request asking why the filter and search sometimes takes over a minute(!) to load. Boost took the initiative to work on the live theme themselves (without any prior consent) rendering the store useless in the middle of the Black Week rush. All you get is an email to confirm if it is working or not, which of course it was not, all filtering, search and other functions were completely non-functional.
Be aware there is no phone number or any other way to get a hold of this company other than email.

If you want a serious webshop this the #1 app I recommend over anything else. If you make shops for clients this app will especially make them happy and impressed.

I have some requirements for custom settings, and I was not hoping the customer service would all respond. But their IT guys take almost 1 work day to deal with my case online and it's a really quick response. highly recommend. Plus, the IT expert Jack is so nice!

Very quick at giving answers both at the live chat and via email. They solve our problem in less that 24 hours.