Mapp Caster

This app was initially incompatible with my theme. Their customer service representatives helped make it functional for my website. They're also willing to do little custom tweaks to their options which is nice. Out of the other apps I tried, this one does the best job link separate products together.

This app worked well for us 7 plus years, but recent updates have caused problems. Previously, you could easily view all selected products under an "option set" by clicking on "review products". Now when you click on review products, it just shows every product in the store. If you had no clue what was assigned to this option set, you would have to continually scroll through all of your products which is pain if you have larger inventories. You can use the search bar to find products within "option set", but you might find only a few of the selected products you are looking for. While you can search individual products under "product search" to see their assigned options sets. Nothing shows all of the products under the option set. You may have to guess around & make note of what is selected on your own end and hopefully it adds up to the number of products selected that it tells you. I couldn't recommend this app to those who have large inventories.