Based on our record, Duplicate Windows seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I haven't used this personally, but it may get you some of the way there: Duplicate Windows app. Source: about 1 year ago
Pennywise - Cross-platform application to open any website or media in a floating window
Afloat - Create beautiful invoices in 3 clicks, without mistakes
PiP for Mac - Always on top window preview similar to the popular windows only OnTopReplica
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.
Swell.is - Customizable, API-first ecommerce platform for innovative brands, startups, and agencies.
PiP-Tool - PiP tool is a software to use the Picture in Picture mode on Windows.