Send a private payment
You need one thing about the person you are paying: their ordinary wallet address. The key to encrypt for them is published on chain and read from there — nothing is exchanged between you, and their wallet never appears in your transaction.
There is no collection deadline here and no way to reclaim: once the deposit is in, only the recipient's key can open it. Check the address before you send — a payment to the wrong wallet is gone for good.
Let someone read this payment
The payment secret is created in this tab and sealed for the recipient before anything leaves it. Your wallet signs the transfer; the note is never handed to anyone — the recipient finds this payment themselves with their own key.