To Delete a Branch on your mind map:

1. Tap on the branch you want to delete tap on the brush icon to open the branch editor. 

2. Then, click on the 3 dots in the toolbar of the editor'. Tap delete, located at the bottom.

3.  You will be prompted to confirm that you want to delete the branch.

4. Once you confirm, the branch will be removed. This cannot be undone.

5. When deleting a branch with child branches, a pop-up window will appear. It will tell you how many child branches it has and whether you would like to delete and keep the children or delete all.  If you delete and choose to keep the children, the child branches will re-attach to the previous parent branch.