This one is an excellent tool and great to see that you can use it for free. There are so many great features:

• Multiple Mind Maps on one page
• Many layouts available
• There is no real limit to page size and elements other than what your hardware can process
• Add photos, videos or voice memos
• Export Mind Map as PDF or Image
• No ads - No registration
• Available on Mac, Windows, iOS and Android
• Already used by 8 million users which should really say something about quality
• The premium edition is a a one-time purchase for a lifetime license

No cons to mention. It's a very good Hunt!