1
More, Settings, the farm, then the bottom of the page
The last card is the Danger zone. An owner sees Delete the farm; anyone else sees Leave the farm.
2
Leave
Leave takes you off this farm. Its records stay with the people still on it; an owner can invite you back.
3
Delete
Delete asks you to confirm. Every field, record, sensor and plan goes, for everyone on it. The subscription ends with it. This cannot be undone.

The danger zone at the bottom of Edit farm.
What You See Next
Another farm you are on becomes the active one; with none, the app opens on the door to make a new one.If It Does Not
Related: Build and Share the Pack.