Similar products
Product page recommendations can be integrated easily by adding one line of code to your product page template. First, open product.liquid in the template editor.
Add the following code somewhere in the template:
<div id="recommendify-similar-products" shop="{{ shop.domain }}" product="{{ product.id }}"></div>
The best place to add the code depends on your particular theme, but for many themes a good place is right at the end, or just before the last closing div tag (it looks like </div>). You may need to experiment a little to figure out where is best.
If you want to change the panel heading, you can do so on the configuration page of this site. You can also select whether the price is shown or hidden for each type of panel.
Here's what the similar products panel looks like on the demo store: