Afloat might be a bit more popular than Pennywise. We know about 1 link to it since March 2021 and only 1 link to Pennywise. 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.
Afloat - Don't know if it will work for macOS 12. If it's just for safari alone, you can try Pennywise. Source: about 2 years ago
You can try Afloat (useafloat.com) and see if it works for you. It focuses on simplicity and ease of use. Disclaimer: I'm the founder and developer. Afloat is developed from Malmö :-). Source: about 2 years ago
Helium - Helium lets you accept payments by credit card for anything you want to sell online.
PiP for Mac - Always on top window preview similar to the popular windows only OnTopReplica
PiP-Tool - PiP tool is a software to use the Picture in Picture mode on Windows.
PiPer - A DIY Minecraft computer to build gadgets
Free-Invoice.co.za - Free Invoice Software | Free online tool that helps small businesses to generate free invoices and manage their contact list. It can be used as an alternative to expensive invoicing software and online invoicing applications
PiPifier - PiPifier is a macOS 10.