Highlighter

Website: https://highlighter.com/

Developer:

Highlighter is an incredibly powerful productivity tool, which allows you to highlight (duh😄), share and comment on the most thoughtful expressions. Moreover, with Highlighter you can create both short- and long-form notes, categorize and group them into lists and even post them on behalf of your child Nostr accounts. A detailed guide on Highlighter is available here. An overview of long-form notes can be found in this post.