About Japan eSIM
Japan eSIM is a travel data app for Japan, built and run by BILPP OÜ, a company registered in Tallinn, Estonia. It does one job: get a visitor online in Japan within minutes of landing, at a price they saw before they paid.
Why we built it
The sequence repeats in every Japanese arrivals hall. The roaming message arrives before the seatbelt sign goes off, quoting a rate nobody would agree to at home. The alternatives are a SIM counter whose queue has just absorbed an entire long-haul flight, or a pocket wifi desk renting out one more device to carry, charge and return. Meanwhile the phone in your pocket has supported eSIM since about 2018.
Japan eSIM turns all of that into one purchase and one QR code, done at home over Wi-Fi. Your own SIM stays in the phone for your number, and the eSIM carries the data on a Japanese network.
How we work
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Every price is published in full on the pricing page — no activation fee, and nothing added at the end.
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Data-only plans on Japan's mobile networks, so coverage is what a locally bought SIM would give you, including the mountain valleys where it is thin.
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No account on this website: nothing to sign up for, nothing to cancel later.
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The site is published in the reader's own language, because most visitors to Japan are not searching in English.
Company details
- Legal entity
- BILPP OÜ
- Registered in
- Tallinn, Estonia
- Platforms
- iOS and Android