#askNostr

When sending Zaps on Primal theirs no fee that I can see, only the exact zaps themselves leave my account.

But when I Zap on Amethyst it asks for an external wallet to send from and I choose Phoenix. Phoenix wallet charges fees, 2 sat fee to send 1 test sat, 4 sat fee to send 21 sats.

How can primal zap without fees?