Looking for plugin to let users take notes on posts & pages

Please help! I’m having a hard time finding a well-reviewed plugin that:

  1. Allows everyday users (not just admins) to save and edit notes that only they (or admins) can see on posts and pages
  2. Search for their notes (and not be able to search for or see other users’ notes).

So far I’ve found 2 plugins elsewhere (AddNote and Wordpress User Notes, but they either have no reviews, have a very tight refund policy, or don’t give a detailed enough walkthrough.

Does anyone else know of a great plugin (hopefully one I can buy here at Envato) that does what I’m looking for?

Thank you!