You can create a master visualization to be able to reuse it. Users of a published app will have access to the master visualization but will not be able to modify them.
Do the following:
While editing a sheet, drag a visualization from the sheet to the master items.
If you have given the visualization a title, this is automatically added as the name of the master visualization.
- Add a name, or change the name if you want to.
- Type a description for the visualization (optional).
- Add tags (optional).
- Click Add.
The visualization is now saved to the master items tab.