Boost Product Filter & Search

This is the best app I could find for filtering. They helped me integrate the app with the rest of my site and I couldn't be happier.

I installed the app and the display of the collection pages was messed up (we use Minimal theme). Contacted developer via email and through a support ticket and did not hear back. After leaving a less than positive review they responded almost immediately. They had replied on 1 February but we did not get that reply. They resolved the layout issue very quickly and now everything looks great. UPDATE - 11 Feb 2022:
Continue to use the app and now on the new Shopify Dawn theme and it works great. The support is superb - they reply quickly and resolve issues promptly which is obviously very important.

Very sophisticated filtering system. Good documentation and excellent support. I tried several, BoostCommerce's product works very well. Highly recommend.

Great app, custom filter trees can be confusing however support is fast always happy to assist. Would recommend.

Great service when I couldn't get the things just the way I wanted. Fast and perfect. Emails correspondence was good

Awesome Support! Quick Response to support requests :)

We requested updates to filter experience. John was very quick to respond and help us implement a code update. It's a pleasure to work with this team! Really happy with the support.

Great service. Boost's support people are always responsive and helpful when we have a question, even if it's for something that feels like it would be above and beyond, they always come through!

Really great app! Perfect for custom filtering and priced well! Definitely recommend this app if you have different products that require different filters.

Excellent customer service. Had a question and received support straight away. Highly recommend having this app if you have a range of products and sizes.

A must-have app for stores with larger ranges or those who want to give customers an easy way to *quickly!* filter collections by size / colour / brand / price etc. We tested a lot of apps to handle this important aspect of the site, and Product Filter & Search is by far the best on our opinion. HAve now used it on multiple Shopify sites with great success. Easy to set up and Tony and the team quickly assisted in customising the app to suit our particular requirements. When we had any other minor ongoing issues, support is always super responsive and helpful. One of the most useful apps on our website. Thanks Tony & team!