Best Taxi App in Japan for Tourists: GO vs Uber vs DiDi and the Data You Need (2026)

For most tourists, GO is the easiest taxi app in Japan: its official English page says it accepts international credit cards and Apple Pay, and the app can be switched to English. Uber (through Uber Taxi) and DiDi also work in major cities. Whichever you choose, every step from locating you to tracking the car needs mobile data, so pair the app with a Japan eSIM and finish signup before you fly.

GO vs Uber vs DiDi: which taxi app is best in Japan?

Source: official GO, Uber Japan and DiDi Japan websites, checked November 2026. Features and coverage can change; check each app for the latest details.

In Japan, these apps are mainly used to hail licensed taxis. Uber here works mostly through Uber Taxi, which is different from the private-car rides you may know from home. Many travelers install two apps so they have a fallback at busy times.

Do you need a Japanese phone number to use GO?

GO's official page does not say a Japanese number is required. Its English how-to shows a step to "enter phone number and verification code" when registering for in-app payment, and it notes that coupon distribution ends for users verified with non-Japanese phone numbers. In other words, you can sign up with your home number; you just may not get the welcome coupons.

That verification code arrives by SMS, and a Japan travel eSIM is data-only with no SMS. So the simplest move is to sign up at home with your regular SIM before the trip. More on this in do you need a Japanese phone number to travel in Japan.

How much data does a taxi app use?

Very little. A typical ride request, live car tracking and in-app payment use roughly a few MB up to around 15MB. The challenge is not volume but availability: you request the car from a curb, a station exit or a hotel driveway, often out of Wi-Fi range. With GO, you can also message the driver in the app, which again needs a live connection.

That is why a mobile data connection matters more than a big data allowance. A CDJapan Rental eSIM connects directly to docomo, Japan's largest mobile network, so you stay online on the street, in the station and on the way to the airport.

What should you set up before the trip?

1. Install GO (and a backup app), sign up and verify your phone number at home.
2. Add your credit card or set up Apple Pay so you can leave the taxi without paying in cash.
3. Install your Japan eSIM over home Wi-Fi. Step-by-step: how to set up a Japan eSIM.
4. Turn on the eSIM data line after landing. With CDJapan Rental, plan days start counting once your phone actually connects to a Japanese mobile network.
5. Keep your home SIM on in dual-SIM mode in case an app asks for another SMS code.

Which Japan eSIM plan works best?

Taxi apps barely touch your allowance, so choose by how you use data the rest of the day. If you navigate and post all day, an unlimited plan is the stress-free pick: no total data cap and no disconnection. Like most carriers worldwide, it follows a fair usage policy (FUP), which is industry standard. With CDJapan Rental, the daily high-speed allowance is 3GB; after that, speed is limited to 200 kbps until the next day.

Reference prices (as of November 2026; check the product page for current pricing):

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