That’s easy! Just hold your finger on the title of the column you wish to rename in your board. You will see 2 icons appear. Click on the pencil icon.
A box will appear where you should edit the name of the column title.
Click ‘OK’ and the new title will be saved!
You can also click on the "bin" icon to delete your column.
If you have any further questions about how to edit/delete a column on Android, please don't hesitate to reach out to us right here.