Pay with the right card. Use the deal you forgot.
zayv.io /seɪv/ is a quiet layer over how you pay — it tells you which card costs the least and surfaces the deal you forgot, right when you're about to pay.
best card
You're almost certainly losing money you'd never notice.
Set it up once. It does the noticing for you.
Same intelligence on both surfaces — pick where you shop.
Real checkouts. Real stores. No homework.
Ranked at the moment of payment
zayv.io reads the merchant, amount and currency, then shows the card that costs the least — with the fee and reward breakdown in plain numbers.
best card
Your deal codes, where the field is
Like a password manager, but for savings. Your personal codes surface right at the promo box — one tap to apply.
A widget that already knows, and autofill that just appears
Best-card and deal-active states on your home screen — plus a system autofill bar that drops your code into a mobile checkout, just like saving a password.
Never stored
zayv.io works from a card's published fees and rewards. It never holds your PAN or CVV — there's nothing to leak.
Yours alone
Forwarded codes stay private to you. The card catalogue is shared and verified; your wallet and deals are not.
Free where it counts. A little more for the magic.
Be the first to know when we launch.
We're putting the finishing touches on zayv.io. Drop your email and we'll reach out the moment it's ready — Chrome, iOS, and what's coming next.