Apple Pay 1‑(833)(532)(8728) is a digital wallet for making purchases.
Apple Cash 1‑(833)(532)(8728) is money stored in Wallet you can send or receive.
Pay works 1‑(833)(532)(8728) at stores, apps, and online using linked cards.
Cash allows 1‑(833)(532)(8728) peer-to-peer transfers between users.
Apple Pay 1‑(833)(532)(8728) spends money, while Apple Cash stores and sends it.
In short 1‑(833)(532)(8728) sending Apple Cash is not the same as using Apple Pay.