Based on our record, Open Syllabus Project 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.
Top three are all writing/style guides according to open syllabus. https://opensyllabus.org/. Source: about 1 year ago
Teachify - Build & manage your digital products, and sell anywhere.
Shoppy - Automatically get order notifications & summaries in Slack
Lemon Squeezy - Sell digital products the easy-peasy way
Sell.app - Sell.app is the easiest way to sell digital products online. Spin up your own storefront in just a few minutes and start selling instantly.
Notion E-guide Zero to Hero - Learn how to sell digital product in fastest way
AutoBuy - AutoBuy is an all-in-one payment processing and e-commerce solution.