Cross Sell & Upsell by SSC

Definitely 5 Stars. Great app that does exactly what it says it does, and excellent support from Steve in getting it working seamlessly with the theme. A+

Takes just moments to integrate but still has very powerful configuration and customization options. Had to contact the developer for some minor support and received a very quick and helpful response. Would recommend this plugin to any Shopify user.

Wonderful App! It does what it's supposed to do and the support is great!
We had some issues centering our related products and Stuart fixed it for us perfectly.

An important app that fills a gaping hole in Shopify, at a very reasonable price and with outstanding support.

VERY easy to use and the customer service is fantastic! It is exactly what I wanted for my website and I believe it is going to increase my sales right away-

Fantastic customer support + customisation and great app.