Pennywise - Cross-platform application to open any website or media in a floating window
Webgility - Accounting, Bookkeeping and Inventory Automation for Retailers & Brands
PiP for Mac - Always on top window preview similar to the popular windows only OnTopReplica
Multiorders - Shipping and Inventory Management Software is easy way to save time.
Shopify - Shopify is a powerful ecommerce platform that includes everything you need to create an online store and sell online. Try it free for 14 days.
SellerCloud - SellerCloud is a multi-channel inventory and order management system.