Well that is what I am asking really, I know some apps don't play well together and the volume discount app seems to work for me although it is a paid for one. I just want something that will also offer ways to showcase groups of products together. 

Sorry, I don't understand. So what is this then? https://apps.shopify.com/shopify-bundles?surface_detail=marketing-and-conversion-upselling-and-cross-selling-product-bundles&surface_inter_position=1&surface_intra_position=9&surface_type=category&surf...

I am currently using two apps called 'selleasy' and 'dealeasy' 

Hi there. I currently have a couple of apps on my store. One which offers volume discounts automatically and I also have a 'customer also bought' app on the store https://wigglesandwags.co.uk/products/truelove-dog-harness-true-love which shows on the...