結Yuika

Japanese admin mail, explained

Your Japanese mail,
finally clear

Photograph a letter, bill or form. Yuika tells you what it is, what to do, by when and how much — then tracks the deadline.

Get it on Google Play

iOS coming soon

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In the app

Yuika home: Needs Attention with a resident tax bill and health insurance, amounts and due dates in English.
Home
Document detail: resident tax explained with deadline, amount, numbered steps and a glossary.
Document
Living in Japan guides: before you move, Residence Card, My Number, and health insurance.
Guides
Scan screen: point the camera at a Japanese letter.
Scan

How it works

Photo → what it is, what to do, by when

Not a translator. An action-oriented assistant for administrative mail — city hall, insurance, tax, utilities — built for people living in or moving to Japan who don’t read Japanese fluently.

01 · Photo

Point at the letter

Camera or photo library. Flat page, good light, full document. Printed text works best.

02 · What it is

A clear English read

Type, summary, and a glossary of the Japanese terms on that page — not a generic dictionary dump.

03 · By when

Deadline, amount, steps

What to do next, extracted dates and yen, then a tracker so overdue and due-soon items surface first.

Pricing

Start free. Unlock unlimited.

10 free scans every calendar month (Japan time). Yuika Premium is an auto-renewing in-app subscription via Google Play.

Free

10 scans / month

  • Scan, summary, steps, glossary
  • Deadline & amount extraction
  • Tracker and Living-in-Japan guides

Premium

Unlimited scans · ~€6.99/mo or ~€49.99/yr

  • No monthly scan cap
  • Subscribe in the app (Google Play)
  • Cancel anytime from the store

Prices are approximate store list prices and may vary by country. Yearly includes a 7-day trial where the store offers it.