• Tech
  • Gadgets

How to Set Up Apple Pay on Your iPhone or iPad

5 minute read

Apple Pay, the newest “next big thing” out of Cupertino, hits shopping carts across the U.S. Monday both online and in stores. Paying with a swipe of your smartphone? That sounds like the stuff of the future. Or the stuff of Android phones since 2011. Or the stuff of Japan as far back as 2004. Regardless, it’s still a welcome leap for the 42.4% of American smartphone users who own an iPhone.

Here’s how to set up Apple Pay, the company’s new cashless, cardless way to pay.

Step 1: Get the right iDevice.

To use Apple Pay, you’ll need one of Apple’s latest devices, either an iPhone 6, iPhone 6 Plus, iPad Air 2, or iPad Mini 3. (Funny how it always works like that.) Older Apple mobile devices lack the new Secure Element chip, which encrypts and stores all the user’s payment information. So, even though the iPhone 5S has Touch ID, owners of that device still need to pay the old-fashioned way.

People with new iPhones can use Apple Pay for online transactions and in-store payments, while the iPads announced last week can only use the service for web purchases. That’s because the iPhones have a built-in Near Field Communication (NFC) antenna, which let users pay with a wave of the smartphone, while Apple’s tablets still lack NFC.

Step 2: Download the iOS 8.1 Update

Next, you’ll have to update your iPhone’s operating system to iOS 8.1, due to be released Monday. Not to be confused with iOS 8.0.1, the update that crippled thousands of iPhones in its brief reign of terror, iOS 8.1 includes an array of anticipated features, like Apple Pay and the return of the Camera Roll.

Step 3: Open the Passbook App

Flick to the barren wasteland of your second or third homepage — or wherever else you’ve stuffed Passbook, since like most people, you probably rarely use it. Upon opening the app to set up Apple Pay, it will ask if you want to use your credit or debit card already on file for iTunes purchases or add a new card.

Step 4: Pick a Card, Not Quite Any Card

For those of you who opt not to use your iTunes account, Apple Pay currently works with Visa, Mastercard, and American Express. If you’re nervous about this newfangled technology, but too tempted to stay away, it might be wise to use a credit instead of a debit card so you won’t be out any cash should things go awry.

A cadre of cooperating banks were revealed at the service’s unveiling, including Bank of America, Barclays, Capital One, Chase, Citibank, Navy Federal Credit Union, PNC, US Bank, USAA, and Wells Fargo. If your bank isn’t listed here, it still may be a part of the service. Everyone wants to party with Apple, and other banks have signed on since the service’s announcement in September.

When you ask Passbook to load a new card into Apple Pay, it activates your iPhone’s camera and prompts you to snap a photo of your card. Apple analyzes this image and interacts with your bank to confirm that it indeed belongs to you. Once that magic happens, a generic-looking image of your card appears in your Passbook app. Just tap on it when you want to use it.

It’s worth noting that the Passbook app doesn’t display your card number. Apple doesn’t even actually store your credit card number, nor does it give the number to merchants. Instead, Apple Pay creates a “device-only account number” which is stored on your device’s Secure Element chip. Every time you use Apple Pay, Apple issues a one-time payment number and a dynamic security code — both encrypted — to the bank. And not only does Apple not know what you bought, where you bought it, or how much you paid for it, but cashiers won’t be able to see your name, credit card number or your card’s security code when you making in-store purchases — a big improvement in real-world security.

Step 5: Shop

If you want to put your iPhone to the real world retail test immediately, there are already 220,000 locations ready to take Apple Pay. According to Apple, every Macy’s/Bloomingdales, McDonalds, Staples, Subway, Walgreens/DuaneReade, and Whole Foods are among the retailers already equipped to accept these contactless payments. And, of course, Apple Stores are also ready to take your money. Just wave your phone at the NFC terminal, touch your iPhone’s Touch ID sensor and wave your money goodbye.

Apple PayApple Pay

Meanwhile, shopping online sounds a little more complicated. Every online purchase demonstrated in the Apple Pay presentation went through an iOS app. So, whether you’re buying something from Target, accepting an offer from Groupon, or ordering a sandwich from Panera Bread, you’ll need to download the company’s app first. It’s unclear at this time if you will be able to use Apple Pay when shopping through a mobile browser like Safari or Chrome. But given Apple’s app-centric view of the Internet, I wouldn’t put any money on it.

But there is a plus side: in exchange for downloading and using these apps, after you pay with your fingerprint on the Touch ID sensor, you don’t have to enter your billing or shipping address, which can be a drag — especially when you’re shopping online using an iPhone or iPad.

See the World Await and Celebrate Apple's iPhone 6

People pass time as they wait outside an Apple store for the iPhone 6 and 6 Plus in London on Sept. 17, 2014.
People pass time as they wait outside an Apple store for the iPhone 6 and 6 Plus in London on Sept. 17, 2014. Lefteris Pitarakis—AP
People wait for the release of Apple's new iPhone 6 and 6 Plus in front of the Apple Store in Tokyo on Sept. 18, 2014.
People wait in line in front of the Apple Store in Tokyo on Sept. 18, 2014.Yuya Shino—Reuters
A man sleeps in a tent in the queue outside an Apple store in London on Sept. 18, 2014.
A man sleeps in a tent in the queue outside an Apple store in London on Sept. 18, 2014.Justin Tallis—AFP/Getty Images
A man wearing a replica of an iPhone 6 Plus model on his head yawns while waiting in front of the Apple Store in Tokyo on Sept. 19, 2014.
A man wearing a replica of an iPhone 6 Plus model on his head yawns while waiting in front of an Apple Store in Tokyo on Sept. 19, 2014.Yuya Shino—Reuters
A woman sleeps in a chair as she waits in queue outside the Apple store in London on Sept. 18, 2014.
A woman sleeps in a chair as she waits in queue outside the Apple store in London on Sept. 18, 2014. Justin Tallis—AFP/Getty Images
A staff member removes a display poster of iPhone 5S at the Apple store in Tokyo on Sept. 18, 2014,.
A staff member removes a display poster of iPhone 5S at an Apple store in Tokyo on Sept. 18, 2014,.Yuya Shino—Reuters
Customers queue outside an Apple store in Hong Kong on Sept. 19, 2014.
Customers queue outside an Apple store in Hong Kong on Sept. 19, 2014. Xaume Ollerose—AFP/Getty Images
Ken Miyauchi Vice President of Softbank, Japanese mobile phone company and actress Sayaka Kanda, in a pink dress, react during a ceremony to mark the first day of sales of the latest iPhone 6 and 6 Plus at a store in Tokyo on Sept. 19, 2014.
Ken Miyauchi Vice President of Softbank, Japanese mobile phone company and actress Sayaka Kanda, in a pink dress, react during a ceremony to mark the first day of sales of the latest iPhone 6 and 6 Plus at a store in Tokyo on Sept. 19, 2014.Shizuo Kambayashi—AP
Apple iPhone 6 and iPhone 6 Plus go on sale in USA
After being first in line for 19 days, Moon Ray, from Jackson, Miss. runs the gauntlet of Apple store workers as she enters the Fifth Avenue Apple store in New York on Sept. 19, 2014.Peter Foley—EPA
Apple store staff high five customers as they enter the store in Tokyo on Sept. 19, 2014.
Apple store staff high five customers as they enter an store in Tokyo on Sept. 19, 2014.Chris McGrath—Getty Images
A man wearingaA man wearing a mask depicting Apple's co-founder Steve Jobs holds up a cardboard cut-out of Apple's new iPhone 6, as he walks into the Apple Store in Tokyo on Sept. 18, 2014. a mask depicting Steve Jobs holds up a cardboard cut-out of Apple's new iPhone 6, as he walks into the Apple Store in Tokyo
A man wearing a mask depicting Apple's co-founder Steve Jobs holds up a cardboard cut-out of Apple's new iPhone 6, as he walks into an Apple Store in Tokyo on Sept. 18, 2014.Yuya Shino—Reuters
Andreas Gibson celebrates as he exits the Apple store after being the first to purchase an iPhone 6 Plus on Sept. 19, 2014 in New York.
Andreas Gibson celebrates as he exits an Apple store in New York after being the first to purchase an iPhone 6 Plus on Sept. 19, 2014. Julie Jacobson—AP
Jamael Ahmed jumps in the air as he leaves the store after being the first to purchase the iPhone 6 at Apple Covent Gardens in London on Sept. 19, 2014.
Jamael Ahmed jumps in the air as he leaves the store after being the first to purchase the iPhone 6 at Apple Covent Gardens in London on Sept. 19, 2014.Ben A. Pruchnie—Getty Images

Read next: These Are the Stores That Accept Apple Pay

More Must-Reads From TIME

Contact us at letters@time.com