#1 AI Phone Call Translator for Japan
Make any phone call to Japan. Speak your language. They hear Japanese.
Translate phone calls in real-time — speak English, Mandarin, or Cantonese, and the other side always hears natural Japanese. Book restaurants, call ryokans, reach family in Tokyo. Both sides, both directions, in under one second.
iPhone · iOS 16+ · International calling included
Live demo · real translated audio
Hear the call you'll make.
Pick the language you speak. Press play. The other side always hears Japanese.
Tap "Play with sound" to start
Built for the calls you've been avoiding
One app. Every Japanese phone number.
For Travelers
Travel Japan confidently — book sushi counters, call ryokans, ask taxis to wait, talk to a hospital reception in Kyoto. Any phone-only Japanese business, any time of day.
For travelers in Japan →For Family
Stay close — call Japanese in-laws, grandparents, or business contacts in Tokyo. They hear you in their language; you hear them back in yours.
Pick your language →For Living in Japan
Adapt smoothly — schedule a doctor's appointment, register at city hall, talk to your landlord. Calls that don't end in "let me get someone."
Living-in-Japan use cases →The first cross-language calling app built for Japan.
Live Call Translation
Speak your language. They hear natural Japanese in under one second.
Native Call sits between two phones and translates each side in real time. The other end isn't on Zoom and isn't using an app — they're answering a normal phone call, in fluent, polite Japanese.
"Hi, I'd like to book a table for two tomorrow at seven."
「明日の7時に2名で予約したいのですが。」
Real-time, both directions
Phone-call latency, not Zoom-call latency.
Most translation tools were built for video calls — a two-second turn delay is fine. Phone calls aren't. We rebuilt the audio path from scratch for narrowband phone audio: under one second from when you stop speaking to when they start hearing.
Bilingual Transcript
Every word, both languages, side-by-side.
When the front desk says "we'll hold a 20:00 dinner slot," you don't have to remember it — the call's full bilingual transcript stays in the app. Re-read what was said, in either language, after you hang up.
かしこまりました。20時にお席を…
Understood. We'll hold a table at 20:00…
Perfect. Thank you so much.
Join travelers making the calls they used to avoid.
From sushi counter bookings to ryokan late-arrivals to that one phone-only clinic in Shibuya — Native Call is how thousands of travelers and residents are getting things done in Japan every week.
Pick the call you need to make.
Call a Japanese restaurant
Counter sushi, izakayas, kaiseki. Most don't take online bookings — the only path is a Japanese phone call.
Restaurant booking →Call a Japanese hotel
Late check-in, dietary requests, ryokan dinner times. Email is too slow when the Shinkansen schedule has changed.
Hotel calls →Anything else in Japan
Hospitals, airlines, lost-and-found, government offices, your in-laws. If it's a Japanese phone number, it works.
Japan phone translator →How it works
- 1
Open the app and dial the number
Type or paste any Japanese phone number — restaurants, hotels, hospitals, government lines. International calling is built in; you don't need a SIM that supports Japan.
- 2
Speak your language, the other side hears Japanese
Native Call sits between the two phones. Your English (or Mandarin or Cantonese) is converted to natural-sounding Japanese in under a second, and their Japanese comes back to you in your own language the same way.
- 3
Hang up with what you needed
Reservation booked. Room request confirmed. Question answered. The full bilingual transcript stays in the app so you can re-read what was agreed.
Common questions
How is this different from Google Translate? +
Google Translate is a one-person tool — you talk into your phone, it speaks the translation aloud, the other person replies into your phone. On a real phone call there's no shared phone. Native Call sits between the two phones: you call them through the app, your audio is translated on the way out, and their reply is translated on the way back. They hear a fluent voice in Japanese, and you hear them back in your own language.
Which languages does Native Call support? +
You can speak English, Mandarin (Traditional or Simplified), or Cantonese. The other side always hears natural Japanese, with the level of politeness the situation calls for. Their reply comes back to you in your own language.
How fast is the translation? +
Glass-to-glass latency is around one second from when you stop speaking to when the other side starts hearing you. Both sides hear a natural voice — not a robotic readback.
Do I need a Japanese SIM or special calling plan? +
No. Native Call places the outbound call from our infrastructure. You only need an internet connection — Wi-Fi or your normal data plan, anywhere in the world.
Is there a free trial? +
Yes — every account gets free minutes to try a real call before you decide. After that, calling is paid by the minute or via a monthly plan.