10 Apps to Download Before You Fly to Japan
Before flying to Japan, set up your entry paperwork, a travel eSIM, offline maps, translation, a transit app and a way to pay. Do the paperwork and downloads at home on Wi-Fi so nothing depends on airport signal. This list puts ten apps and settings in the order to tackle them.
Updated 27 October 2026
This list is for first-time and returning visitors who want to land in Japan without scrambling for Wi-Fi at the arrivals hall. The one thing to do first is the entry paperwork, because everything else can wait but that cannot.
1. Visit Japan Web
It lets you register your immigration and customs details online before you travel, so you spend less time filling in forms at the airport. You end up with QR codes ready to show on arrival.
How: Open the official Visit Japan Web service in your browser, create an account and enter your passport and trip details at home. Screenshot the codes it gives you in case your signal is patchy.
Tip: Use the same passport details that appear on the passport you will actually travel with.
2. Your airline's app
It holds your boarding pass and sends gate changes and delay alerts, which matters on a long-haul flight with a tight connection.
How: Download the app, sign in with your booking reference and add the boarding pass to your phone's wallet if the app offers it.
Tip: Turn on push notifications now so alerts reach you in transit.
3. A travel eSIM for data
Having data the moment you land means maps, translation and ride apps work straight away, with no hunt for a counter or a Wi-Fi password. Fresim creator stores sell travel eSIMs, delivered by email with one-tap install buttons.
How: Buy from a Fresim creator store, then open the delivery email on your phone and tap Install on iPhone (iOS 17.4+) or Install on Android (Android 10+). Do this on home Wi-Fi before you leave, and check your phone is network-unlocked first.
Tip: Prices vary by destination and are set by each store, so compare a couple before you buy.
4. Google Maps offline areas
Station exits in big Japanese cities can be sprawling, and offline maps keep your blue dot working if data drops out underground.
How: In Google Maps, tap your profile picture, choose Offline maps, then Select your own map and drag the box over the cities you are visiting. Download it on Wi-Fi.
Tip: Save your hotel and a few places you want to visit as starred places, so they are easy to find offline.
5. Google Translate with Japanese downloaded
Menus, signs and ticket machines are often in Japanese only, and the camera mode can translate them as you point your phone.
How: Install Google Translate, tap the language list, and download Japanese for offline use while you are on Wi-Fi. Try the camera button on a sample page of Japanese text before you leave.
Tip: Show your screen to staff for tricky questions rather than reading the romanised text aloud.
6. A transit route planner
Tokyo, Osaka and Kyoto have layered rail and subway networks run by several operators, and a planner shows platforms, transfers and last trains in one place.
How: Download a route planner such as Japan Travel by NAVITIME, or rely on the transit mode in Google Maps. Enter a sample trip at home so you know how to read the results.
Tip: Check the last train time before a late dinner, since services stop for the night.
7. A Suica card in your phone wallet
A rechargeable IC card lets you tap through ticket gates and pay at many convenience stores and vending machines without queuing at a machine.
How: On iPhone, open the Wallet app, tap the plus button and add a Suica card, then top it up with a card linked to your wallet. On Android, check whether your phone supports it before relying on it, and plan to buy a physical IC card on arrival if not.
Tip: Set it up before you fly, as you cannot add it easily without a working connection.
8. Bank card travel settings
Cards can be declined overseas if your bank flags unusual activity, and some places in Japan still prefer cash.
How: In your banking app, add a travel notice for your dates, switch on transaction alerts and add your main card to Apple Wallet or Google Wallet for tap-to-pay. Keep a second card as a backup.
Tip: Withdraw some yen from a convenience store ATM soon after you arrive for the places that only take cash.
9. The GO taxi app
Hailing and explaining your destination to a driver is harder without Japanese. A taxi app lets you set the pickup and drop-off on a map, so there is nothing to say.
How: Download GO, create an account and add a payment method at home on Wi-Fi. Check that your phone number verifies correctly before you travel.
Tip: Keep your hotel's name and address in Japanese saved in your notes as a fallback.
10. Safety tips from JNTO
Japan is prone to earthquakes and severe weather, and this app from the Japan National Tourism Organization sends warnings in several languages and shows basic guidance.
How: Download Safety tips, choose your language and allow notifications. Read the quick guidance for earthquakes before you fly.
Tip: Check that emergency alerts are switched on in your phone's system settings too.
Staying connected
Install your travel eSIM before you leave: open the delivery email and tap Install on iPhone (iOS 17.4+) or Install on Android (Android 10+), and the eSIM sets up in a moment. The QR code in the same email is the second option, handy for sharing the eSIM or installing it from another screen. Switch it on when you land and your maps, translation and ride apps are ready.
Checklist
- Complete Visit Japan Web
- Install your travel eSIM
- Download offline maps and Japanese
- Add a Suica card or payment card
- Turn on safety alerts
Planning the trip? eSIM for Japan: Complete Travel Data Guide [2026]
Frequently asked questions
What apps do I need for Japan?
The essentials are Visit Japan Web for entry paperwork, a maps app with offline areas, Google Translate with Japanese downloaded, a transit planner, a wallet with a payment card or Suica, and a taxi app. Add your airline app and a safety alerts app for peace of mind.
Do I need Visit Japan Web before I fly?
It lets you register immigration and customs details online ahead of arrival, which can save time at the airport. Check the official Japanese government guidance for your situation before you travel.
Can I use Google Maps in Japan?
Yes, Google Maps works well for walking and public transit directions in Japan. Download offline areas for your cities in case your signal drops, and use transit mode to see train and subway routes.
How do I get data in Japan as a tourist?
A travel eSIM is a simple option. Fresim creator stores sell travel eSIMs, delivered by email with one-tap install buttons: Install on iPhone (iOS 17.4+) or Install on Android (Android 10+). Prices vary by destination and are set by each store.
Can I pay with my phone in Japan?
Often yes. Many shops and transit gates accept tap-to-pay or an IC card in your wallet, but some small places only take cash. Set up your cards before you go and carry some yen as a backup.
More travel lists
Run a travel channel? Sell eSIMs under your own brand.
Sources
- Digital Agency, Government of Japan — Visit Japan Web service information
- Japan National Tourism Organization (JNTO) — Japan Official Travel App and Safety tips
- Google Maps Help — Download offline maps and use them in Google Maps
- Apple Support — Add a transit card to Apple Wallet