Why "Retaining" information is a waste of time (unless you can Apply it).

Most productivity tools like Notion or Obsidian are great for storing information, but they’re terrible for learning it. I call it "The Blank Canvas Problem"—you spend 3 hours setting up a database and 0 hours actually studying.

I built retenir.app to be a "Study Engine" instead. You drop the PDF, and the agents do the setup for you so you can go straight into active testing.

What feature would make you finally delete your "Study Notes" folder in Notion?