I have found this app the best for suggesting similar products, others I used I had to manually select similar items to link with categories/tags. This algorithm works a treat. It was easy to set up and install on my website. When I updated my website to a new theme Daniel was very helpful and installed it within 24 hours for me.
I would recommend this for anyone looking to upsell.

Very glad to have come across this app. The algorithms work well and the app completely matches our theme. Highly recommended!

Their product recommendation based on data, Really amazing app and support is excelent.. I would recommend it to anyone!

Stop wasting time trying out another product recommendation app that doesn't work! This is the app you need for your Shopify store. The most important thing about an amazing Shopify app beyond the core features, is the product support. The Dev Support team at Recomatic are phenomenal. They go above and beyond to ensure the app works seamless with your store, whether that's changing the CSS look and feel to including extra add-on features. The team will make sure the app just works! On top of all that, the app is reasonably priced, has AI driven recommendations to provide you the best matching products to cross and upsell increasing your AOV. There really isn't a reason why you shouldn't use this app.

Incridible app, easy for customize and support is excellent... i recommended this app... Thank you!

A lot better then the built in shopify options. Great app with great support at a reasonable price. Highly recommended.

Easily the best product recommendation app we have seen on the market. The recommendations are so intelligently done. Really helps us highlight more with the same amount of traffic. Support from the Recomatic team is also wonderful. Highly recommended.

Recomatic is a fantastic app for increasing sales. The customer support team is very responsive and great to work with.

This is an awesome app that does exactly what it says. Super-fast and helpful support too. Highly recommended.

great app, great functionality and great customer service. they have gone above and beyond to tailor the app to fit our needs.