If you want to stop using Evernote to save your content, you can transfer all your notes from Evernote to Apple Notes in seconds under Mac OS X in the following instruction.
From Mac OS X, run Evernote, then Log in with your ID and password
You now Click on Edit button, then click on “Select All” to choose all the notes to migrate.
Pull down “File” at the top Evernote window, choose “Export Notes.”
Launch Notes app, pull down File at the top Notes window to Import Notes
Next step is selecting the Exported Notes by Evernote to import into Notes app.