Digital China: The Phone Is the Key

01The Phone Is the Key

Can a foreign visitor manage in cashless China, and where does it go wrong?

In China the phone is the key to almost every door: the shop, the taxi, the restaurant menu, the museum booking, the bicycle at the kerb, the train ticket, the doctor's queue. The key is cut to a Chinese identity card 身份证, and a foreign passport is the substitute the system accepts in most locks and not in all. That is the whole of this page in two sentences, and it leads to one instruction: configure the key before you board the plane, because the places where it goes wrong are the places where you cannot fix it.

The first correction: cash is still the law. The yuan note is legal tender and a shop that refuses it is breaking a rule the central bank published in 2018. What has happened is not a ban but a habit: a country of a billion online payers stopped carrying money, the shops stopped keeping change, and the taxi driver looks at a note the way a European looks at a cheque. Cash works; it simply makes you the slowest person in the queue. Carry a few hundred yuan for the stall that wants it and the day the app does not.

The second: not every door needs the phone. The high-speed train gate reads your passport, not a code. The hotel wants the passport and nothing else. The metro ticket machine takes coins and notes and the airport bus takes cash. The doors that need the phone are the small ones you pass a hundred times a day: the noodle window, the fruit stall, the shared bicycle, the taxi, the museum that has no ticket office because it has a booking page.

The third, and the one that explains every failure you will read about online: the barrier is not the technology, it is the identity. Every Chinese adult carries an eighteen-digit shenfenzheng 身份证 number, and every system in the country was built with that number as its spine. A passport number is a patch applied later, app by app, and where the patch has not been applied, the drop-down menu has no option for you. The payment apps have been patched well since 2023; the train system has a passport route that works with patience; a museum's booking page may or may not. Knowing that the problem is the patch, not your phone, is most of the way to solving it.

02The Map of the Apps

Which apps do you need in China, and does a foreign passport work in them?

The map of digital China is not a map of the country but of two apps, a dozen tools that hang off them, and a handful of websites that still matter. Learn the shape and the rest is detail.

Two operating systems. WeChat 微信 began as a messaging app and became the place Chinese life happens: payments, the official accounts that replace websites, and above all the xiaochengxu 小程序, mini-programs, small apps inside the app that book the museum, order the tea, unlock the bike and show the menu. Alipay 支付宝 began as a payment app and grew the same way from the other side, with the transport codes for metro and bus, a taxi service inside it and a section built for visitors. Neither is optional. A visitor needs both, because some doors open only to one, and because when a card is refused by one the other often takes it.

The tools by task. Maps: Amap 高德地图 or Baidu Maps 百度地图, both with English place names, and Apple Maps, which works in China and which travellers recommend more than they expect to; Google Maps does not load without a workaround and is out of date where it does. Taxis: Didi 滴滴, with an English interface, foreign cards and a habit of waiting for you to press pay. Trains: the national booking app, 12306, which accepts a foreign passport after a registration that travellers call the single hardest step, and Trip.com, which shows the timetable two months out and books for a fee. Flights and hotels: Trip.com again, or its Chinese parent Ctrip 携程. Restaurants and reviews: Dianping 大众点评 and Meituan; delivery: Meituan 美团 and Ele.me; shopping: Taobao 淘宝, JD 京东 and Pinduoduo 拼多多, of which JD is the one with English and foreign cards. Translation: the camera in Google Translate with its offline Chinese pack downloaded at home, or Baidu Translate 百度翻译, or the translate button that WeChat puts under every message. Discovery: RedNote 小红书, which is where Chinese travellers find restaurants and where a growing number of foreign ones now look too, and Douyin 抖音, the domestic TikTok.

The websites. Chinese people almost never open a website; the app and the mini-program 小程序 replaced it. The few a visitor needs are official: the train booking site, the National Immigration Administration for entry rules, the visa-application portal, and your embassy. Everything else on this page lives on a phone. The table lists the apps with their Chinese names, so you can show a screen to the person helping you, and says for each whether a foreign passport gets in.

03By the Numbers

How cashless is China really, with sources and years?

The table under this block carries the figures with their sources and years; four of them are marked for a final check against the mid-2025 internet report. The prose says what they change.

A billion people pay by phone. The country counts about 1.1 billion internet users and about a billion who pay online, which is the arithmetic behind the empty till: the shop has no reason to keep change when the last cash customer was last week. WeChat 微信 reports well over a billion monthly users and Alipay 支付宝 a billion, which is why both are on every counter and why a visitor with neither is locked out of the ordinary economy rather than of a luxury.

Half a billion parcels a day. The post office counted about 175 billion express parcels in 2024, close to five hundred million a day, and the delivery riders who carry meals are the other half of the same fleet. The consequence for a traveller is on the shopping page: a charger, a coat or a medicine at the hotel desk within the hour.

The rules with dates. Refusing cash has been an offence since the 2018 notice. Since March 2024 a foreign card bound to a Chinese payment app may be used up to five thousand dollars in a single payment and fifty thousand a year, limits raised for visitors; small payments carry no fee and larger ones a percentage, a schedule that changes and is kept on the shopping page. Every mobile number has needed a real name since 2013 and a face since 2019.

The services that do not load. Google's search, mail and maps, YouTube, Facebook, Instagram, WhatsApp and X do not open on a Chinese network. They do open on a foreign SIM roaming in China, because roaming traffic goes home first, which is the single most useful technical fact on this page. Whether to add a VPN on top is a choice travellers make for themselves; this page records the facts and leaves it there.

04What It Changes for Your Trip

What should you set up before flying to China, and what if it fails on arrival?

Do the following at home, in this order, and the country opens on arrival. Do it on arrival and you will spend the first day in a hotel lobby waiting for a text message that cannot reach you.

Before you fly. Install both WeChat 微信 and Alipay 支付宝. Register each with your home mobile number, not a Chinese one you do not yet have. Bind a card in each; Visa, Mastercard, American Express, JCB, Diners and Discover are accepted, and a second card in the other app is the insurance against the first being refused by your own bank. Complete the identity check with a photograph of your passport and your face; it takes minutes to a day and cannot be hurried from a hotel room. Then download the offline Chinese pack for your translator and the city maps you will need, and register on the train app if you intend to buy your own tickets, because the passport check there is the slow one. Finally, decide how your phone will connect: keep your home number alive, on roaming or an eSIM, because every code you will ever be sent goes to it, and because a foreign SIM roaming in China reaches the services a Chinese one does not.

On arrival. The code works in two directions: you scan the shop's, or the shop scans yours, and the cashier will point at whichever they want. Keep three to five hundred yuan in notes for the stall, the temple and the day your bank blocks a foreign transaction. Expect the taxi, the market and the noodle window to be phone-only in practice, and the hotel, the train and the museum ticket office to want the passport instead.

The passport doors. Museums: most booking pages now offer a passport option and the staffed desk takes the rest; the museums page has the rule. Trains: the app's passport route works, and the manual gate at the station always does. Metro: the transport code inside Alipay works city by city, and the ticket machine takes cash everywhere. Taxis: Didi 滴滴 accepts a foreign card and will wait for you to press pay at the end. Delivery: the shopping page has the hotel-desk trick and the apps that accept a foreign card.

When it fails. It will, once or twice: a mini-program 小程序 with no passport field, a bank that declines the first Chinese transaction, a code that does not arrive. The hotel desk can book the museum, the station has a staffed window, the second card usually clears, and a text message will arrive if the home number is alive. PreeChina books the passport-only doors for its guests as a matter of routine, which is a service, not a workaround.

If the phone goes. The phone is the wallet, the tickets and the map, so it is the one thing to protect: a PIN on the payment apps, the passport photographed and stored somewhere else, and a second device if you carry one. The scams that live on the phone are on the safety page.

05Where You’ll Meet It

Where on PreeChina are the fees, the booking apps and the delivery trick?

This page is the operating system. The applications are on the pages that use them.

The shopping page has the wallet in working detail: the fee schedule for foreign cards, the card-scheme list, the UnionPay 银联 app that opens hundreds of services without a card in each, the delivery trick of addressing a parcel to the hotel desk, and the convenience store 便利店 that needs no page at all.

The transport page has Didi 滴滴 and the train booking windows; the safety page has the real-name rule from the other side, and the scams that arrive as a code or a message.

The museums page explains the booking mini-programs and which ones take a passport; the parks page has the layered ticket that is bought on a phone at the gate; the markets page has the stall that takes a code and the one that does not.

The calendar page has the release windows that make the booking apps matter in the first place.

The page on new China takes the same system into daily life: the hospital that queues by phone, the government hall that issues a document in one visit, the unmanned shop, the delivery locker, the robot that brings the meal.

The how-it-works page has the step-by-step for binding a card and registering on the train app, kept current because those steps change.

06What It’s Not

What do first-time visitors get wrong about apps and payment in China?

• Not cashless by law. The note is legal tender and refusing it is an offence. Cashless is a habit so complete that it feels like a rule, and a few hundred yuan in a pocket still buys anything.
• Not one app. Two, and neither replaces the other; then a dozen tools by task. The table in block 02 is the list.
• Not a wall you cannot see over. A foreign SIM roaming in China reaches the services a Chinese network blocks, and an offline translator and offline maps need no network at all.
• Not a technology problem. The apps are excellent. The failures a visitor meets are identity failures: a system keyed to an eighteen-digit card number, patched for passports in most places and not yet in all.
• Not something to set up on arrival. The verification codes go to your home number and the identity check takes hours. Done at home it is ten minutes; done in a hotel lobby it is a lost day.
• Not the whole internet missing. Apple Maps works. Bing works. Every major Chinese app has an English interface, and WeChat 微信 translates any message with one press.
• Not a credit-card country. Cards work at the hotel, the mall and the airport, and almost nowhere else on their own; bound to a phone they work everywhere.
• Not a website culture. Chinese people open apps and mini-programs, not pages. The official sites a visitor needs can be counted on one hand.