Kiwi Coupons
Promo Code vs Referral Code vs Coupon vs Discount Code (NZ)
What's the difference between a promo code, referral code, coupon, discount code and voucher in New Zealand? A plain-English guide to how each works and how to claim one.
Promo code, coupon, discount code, voucher, referral link — they all promise savings, but they don't all work the same way. Here's the plain-English difference, and how to tell which one a New Zealand brand actually uses.
Quick answer: On most NZ deal sites — including this one — "promo code", "coupon", "discount code" and "voucher" mean the same thing: a way to get money off or a sign-up bonus. A referral code (or referral link) is slightly different — it's a personal link that rewards both you and the person who shared it. The catch: many modern NZ services (Sharesies, Uber Eats, HelloFresh and others) don't have a checkout "code box" at all. They attach the offer to a referral link instead.
At a glance
| Term | What it usually means | Where you use it |
|---|---|---|
| Promo code | Letters/numbers that unlock an offer | Typed into a "code" box at checkout or in-app |
| Coupon | The same offer — retail/blog word for it | Code box, or sometimes a clickable link |
| Discount code | The same again — common Google phrasing | Code box at checkout |
| Voucher | The same idea — older/retail word | Code box, or a stored credit |
| Referral code / link | A personal link that rewards both people | You join through the link as a new customer |
Promo code vs coupon vs discount code vs voucher
These four are effectively interchangeable. "Coupon" and "voucher" come from the world of paper cut-outs and gift certificates; "promo code" and "discount code" are the online versions. When you search "[brand] promo code NZ", "[brand] coupon" or "[brand] discount code", you're almost always looking for the same thing: a current offer that saves you money or gives you a bonus. Deal sites use the words interchangeably because shoppers do.
What a referral code (or referral link) is
A referral programme is run by the brand to reward existing customers for bringing in new ones. It's two-sided: the new customer gets a bonus, and the referrer gets a reward too. It's usually delivered one of two ways:
- A referral link — you click it and sign up as a new customer; the offer is attached automatically (no code to type).
- An in-app referral code — you paste a short code into a "referral" or "invite" field when creating your account.
Because the reward comes from the company (not from the referrer's pocket), using a referral link costs you nothing and typically gives you more than a generic public code would.
How to tell which one a brand uses
- There's a "promo code" / "enter code" box at checkout → it's a code; copy and paste it.
- There's no code box — just a "join with this link" button → it's a referral link; sign up through the link.
- The app has an "enter referral code" field during sign-up → paste the code there.
On Kiwi Coupons, every deal page tells you which it is: a Copy Code button means there's a code to paste; a Get Deal link means the offer is attached to a referral link. Browse them all in the full coupon directory.
Which NZ services use codes vs referral links?
As a rough guide (always confirm on the offer page):
- Investment & money apps (Sharesies, Hatch, Stake, Wise, Revolut) — almost always referral links for a new-account bonus. See investment apps compared.
- Food delivery (Uber Eats, DoorDash, DiDi, Delivereasy) — mostly referral links for new users; some run public checkout codes too. See food delivery compared.
- Meal kits (HelloFresh, My Food Bag, Woop) — usually a referral link or a discount applied to your first boxes. See meal kits compared.
- Retail, software & subscriptions — more likely to use a checkout promo code you paste at the cart.
How to claim any offer (general steps)
- Open the offer page and check whether it's a copy code or a referral link.
- If it's a code, copy it and paste it into the brand's checkout or in-app code box.
- If it's a referral link, click through and sign up as a new customer.
- Meet any conditions (e.g. a minimum first order or top-up) — these are listed on the page.
- The discount or bonus is applied per the brand's terms. Offers can change, so confirm current details on the brand's site.
Are they safe and legit?
Legitimate promo and referral offers are run by the brands themselves, and the reward is paid by the company — not by you. You should never pay to "unlock" a code. Claim through the official brand site or app, and read the offer terms for eligibility and expiry.
Frequently asked questions
Is a referral code the same as a promo code? Not quite. A promo, coupon or discount code is usually typed into a "code" box at checkout or in an app. A referral code (or referral link) is a personal link that rewards both the new customer and the person who shared it. On deal sites the words are often used loosely, but the mechanics differ.
Do I get a discount or a sign-up bonus with a referral link? Usually a sign-up bonus or account credit rather than a percentage off a purchase. The exact reward and any conditions (like a minimum top-up) are set by the provider and stated on each offer page.
Why doesn't a brand like Sharesies or Uber Eats have a promo code box? Many modern NZ apps attach their offer to a referral link instead of a checkout code box. You join through the link as a new customer and the bonus is applied automatically once you qualify — there is no code to type.
Are promo codes and referral codes free to use? Yes. You never pay to use a legitimate promo or referral code. If a site asks you to pay to "unlock" a code, treat it as a scam.
Are NZ referral and promo codes legit? Referral programmes run by the brands themselves (Sharesies, HelloFresh, Uber, etc.) are legitimate and the reward comes from the company, not you. Always claim through the official brand site or app and read the offer terms.
Can I use a promo code as an existing customer? Often no — most sign-up bonuses and referral offers are for new customers only. Some brands run separate existing-customer promos. Each offer page notes whether it is new-customer-only.
What is the difference between a coupon and a voucher? In everyday NZ usage they mean the same thing as a promo or discount code — money off or a bonus. "Coupon" and "voucher" are just older or retail-style words for the same idea.
Looking for a specific deal? Browse the full directory of NZ promo codes and referral links, or compare options in our investment apps, food delivery and meal kit guides.