Torque King 4x4

Much better than the native Shopify tools for recommending other products to customers. I observed immediate results, and haven't gon beyond basic setup yet. 10/10.

These guys do pretty good, we used them on a previous platform and now Shopify. They are easy to work with and except for some technical questions customers may have, they pretty much handle everything. 10/10 would recommend at least trying it. Several years ago we tried a similar company and it didn't work, but these guys seem to have figured things out.