Recs.
Updated
OneNote is available for free or as Microsoft Office bundled note-taking software. Supports: Windows, Mac OS, iOS, Android, Windows Phone, and Symbian.
SpecsUpdate
Pros
Pro Supports hierarchical organization of information / notes
OneNote is designed to allow hierarchical organization of information. This is achieved with grouping into the following categories and UI elements (Notebooks, Sections, and Pages). Both Sections and Pages allow additional groupings that can be expanded / collapsed in list view.
This can be incredibly helpful for quickly taking notes and organizing them for work or personal projects.
For example, you could have a Notebook for "Cooking Recipes", with sections for "breakfast, dinner, desserts", where individual recipes would be page entries (i.e. the "Desserts" section would have pages for brownies, chocolate cheesecake etc).
Pro Integration with Outlook
If taking meeting minutes or notes at another calendar event, With a click (in the Windows version) you can import the appointment details (including a checklist of participants and a link back to the original calendar appointment).
Actions from the Meeting can be tagged as ToDo items and you can create linked Outlook Tasks for your own actions.
If you store your notebooks on OneDrive, or use a notebook created in a Microsoft Teams site, you can share the notes directly with any other Office365 users.
Overall, this is a much quicker and more organised way of taking meeting notes than traditional methods.
Pro Strong search features let you quickly find what you're looking for
If you don't want to search through all of your notes, you can narrow it down by specifying the page, section, group, or notebook.
You're not limited to just searching through your text either. You can search for text in images, video recordings, and audio (this is off by default).
Pro Sharing and collaboration
You can share your notes by inviting people with an e-mail, or by giving them a direct URL. You have control over what kind of access the user has on your note (read only, edit) and can revoke it at any time. OneNote will alert you when a chance is made on your shared note.