Apple Notes Review
Ranked in these QuestionsQuestion Ranking
Pro Sync with other devices
It can sync with iCloud, Google or other providers.
You can add files to notes and then filter notes by attachment types.
Pro Rich-text editing
Allows for simple text formatting and making TODO lists with checkboxes.
It's a default system app, making it easy to find and use since it is already installed.
Con Apple devices only
It's not available on non-Apple devices.