You can add diagrams to a Freeform board.
You can easily create a connected diagram, such as a flowchart, by using connectors and the shape picker in Freeform.
Go to the Freeform app , tap ,
You don’t see connector arrows when you select a line or multiple items.
Tip: You can quickly add equally spaced, aligned shapes with connectors. Tap to select a shape, then touch and hold a connector arrow. As you hold, a preview of the shape and line appears. When you let go, the shape and line are added to the board.
After you add two items to a Freeform board, you can add a line between them.
Select two items on your board.
Do one of the following:
Tap Apply consistent styles and formatting in Freeform on iPhone