Transno - Outlines, Notes, Mind Map is an application that has multiple functions and it helps users to manage notes, create, share and demonstrate their mind map, organize thoughts and create a new thing and organize tasks with specific tags preferred by the user. Check it out. Check download links below with website
https://transno.com/
https://apps.apple.com/us/app/transno-notes-mind-map/id1478264065
https://play.google.com/store/apps/details?id=com.transno.app