Cash App payment can be use if you are located in the U.S. Add your Venmo username to Take App to let customer pay.
How to add Venmo as a payment method
Go to Admin > Settings > Payments and click
Add payment method
.Choose payment with "Venmo", Register your Venmo username (e.g. https://venmo.com/$username) then click
Save
.Make a test order and check if your Venmo QR working well.