For an independent Japan trip, apps are not “install everything in the App Store”—you want what you’ll open every day, then treat the rest as optional.
This guide gives a minimum list, when to open each app, how to use it, and how to recover when something breaks. Interfaces change; follow the meaning, not a pixel-perfect screenshot.
Minimum install list
| App | Job | Done when… |
|---|---|---|
| Google Maps | Walking / subway navigation | Offline maps downloaded or hotel saved |
| Translate (Google / Apple) | Menus, street signs | You can use camera translate and conversation mode |
| Welcome Suica or transit IC | Ride payments | Issued and topped up |
| NAVITIME or similar transfer app | Complex transfers / many rail companies | You can look up “A to B departing at HH:MM” |
Also add: reservation confirmation emails, weather, and Visit Japan Web (if you use online arrival forms). Data plan: Japan eSIM.
Related links
- Suica guide
- Tokyo subway for first timers
- Visit Japan Web
- How to pay in Japan
- Is the JR Pass worth it?
Maps: Google Maps as your default
- Before departure, save hotel, airports, and key stations as labeled places.
- Download offline maps for Tokyo / Osaka (still readable when subway signal drops).
- When riding, watch the exit number—picking the wrong exit in a mega station can cost 10 extra minutes of walking.
- Use voice walking navigation, but still obey real traffic lights at crossings.
You’re ready when: you can navigate from the hotel to the nearest subway station and name the exit to use.
Stuck: blue dot jumping / wrong exit → walk to an open area to re-acquire GPS, or match the station’s numbered Exit signs to a screenshot.
Rail transfers: NAVITIME as a second brain
Tokyo often mixes JR, Tokyo Metro, Toei, and private railways. Google Maps is enough most days; when you need finer train types or platforms, open Japan Travel by NAVITIME (or similar).
- Enter origin, destination, and time.
- Choose “fewest transfers” or “fastest.”
- Before leaving, note: which line, which platform, whether a limited-express ticket is needed.
- If you hold a JR Pass or Tokyo Subway Ticket, filter applicable routes in the app when the version supports it.
Stuck: English station names don’t match → paste the official Chinese/Japanese name, or pick the station from the map.
Translate: menus, signs, counters
- Download the Japanese offline language pack before you fly.
- Camera translate: photograph menus (watch lighting and glare).
- Conversation mode: speak slowly at counters; take turns with the mic.
- Save a few phrases: sumimasen, kore o kudasai, eigo dekimasu ka.
Stuck: weird translation involving allergens → don’t trust the machine alone; use handwritten keywords or ask staff to point on the menu.
Booking and finding restaurants
- Discover: Google Maps for hours and location; Tabelog scores often look “low” to overseas eyes—that’s normal Japanese scoring culture, not a bad review.
- Book: popular spots use TableCheck, official sites, or hotel concierge; reserve early for peak lunch/dinner.
- Download confirmation emails as offline PDFs / screenshots—don’t rely on a live webpage only.
You’re ready when: you know tonight is “walk-in queue” or “already have a booking code.”
Stuck: can’t get a viral restaurant → pick the next door or a similar place in the same area; don’t wreck a whole day of transit for one table.
Transit payment and Shinkansen tickets
- City travel: Suica / IC (see the Suica guide).
- Intercity Shinkansen: weigh whether a JR Pass pays for itself; otherwise buy reserved seats via official / agency channels.
- Airport limited expresses (Skyliner, N’EX, etc.) often sell e-tickets on operator sites—download them before departure.
Arrival, weather, taxis (optional)
| Need | Tool | Note |
|---|---|---|
| Arrival forms | Visit Japan Web | Finish before takeoff; keep the QR offline-ready |
| Weather | System weather / meteo apps | Watch typhoon and snow seasons closely |
| Taxis | GO and similar (optional) | Short hops often mean hailing; fares run high |
| Payment backup | Cards / cash | See the payment guide |
Pre-trip setup checklist (~15 minutes)
- Install maps, translate, Suica, and a transfer app; update the OS to a working version
- Download offline maps + Japanese translate pack
- Sign in to Apple ID / Google and enable cloud backup
- Save the hotel address in Chinese and Japanese in Notes, plus a screenshot
- Finish Visit Japan Web (if using) and confirm the QR opens
- Know how you’ll enable eSIM / roaming on landing—apps are useless without data
How to look up one trip (worked example)
- Open Google Maps and paste the hotel address in Chinese or Japanese.
- Choose Transit → note the suggested subway route and exit number.
- If the transfer looks messy, cross-check train type and platform in NAVITIME.
- Screenshot the route before you leave so underground malls without signal still make sense.
- Tap Suica at the gates; after exiting, reopen Maps for the walking leg to the exit.
You’re ready when: you can tell your travel buddy “which line, where we change, which exit we leave from.”
Remember one line: maps + translate + Suica + (NAVITIME when transfers get complex). Mastering those four beats installing twenty unused apps.
