You can pause your investments easily through your Acorns app.
- Select the Main Menu on the top left hand side
- Go to the My settings > Linked Accounts
- Toggle the 'Allow Transfers' off
When you are ready to start investing in you again, just toggle ‘Allow Transfers' to on.
Please keep in mind that this will not cancel transactions already in progress and that Recurring Investments and automatic features may be re-initiated when you resume investments.