I don’t think you can currently send zaps in Primal unless you are using their wallet.
Discussion
Ah well that makes sense. Amethyst is working great for me I just thought I'd try out primal. Sending zaps is too much fun not to have access too.
primal settings indicates the ability to use an external wallet via NWC
It looks like that might only be an option on Android. I don’t see that in the iOS version of Primal..
I think WoS doesn't have a NWC option. So it's a wallet side thing not a primal side thing.
Yeah WoS doesn’t support NWC. There is a list of wallets that do support it here https://nwc.dev