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Screenshots

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About 住道

JUDOU is an app that allows you to intuitively check on a map what kind of property you can afford in which area based on your annual income.

Using open data from the Ministry of Land, Infrastructure, Transport and Tourism's "Real Estate Information Library," it displays actual real estate transaction prices as pins on the map. Entering your annual income calculates your maximum possible purchase price using a simple loan simulation, and the pins are color-coded as "affordable (blue)," "over budget (pink)," or "no price information (purple)." Properties outside your budget range are also shown in pink, allowing you to consider them while getting a sense of the market.

Tapping a pin displays property details. In addition to price, area, price per square meter, floor plan, year built, structure, location, and transaction date, it also shows the "estimated monthly repayment amount" under current loan conditions.

Main Features:
- Displays real estate transaction prices around your current location as pins on a map
- Automatic color-coding of properties you can afford/cannot afford based on your annual income
- Displays property details and estimated monthly repayment amount
- Supports Japanese and English

Data Source (Official Website): Ministry of Land, Infrastructure, Transport and Tourism "Real Estate Information Library"
https://www.reinfolib.mlit.go.jp/
Displayed prices are based on past transaction prices and do not represent properties currently for sale or their asking prices.
Loan calculations are approximate and do not guarantee actual borrowing conditions or purchase feasibility.

[Disclaimer] This app, "JUDOU," is an unofficial app developed and provided by Fuji Bit Inc.
It has no relation to, and does not represent or endorse, the Ministry of Land, Infrastructure, Transport and Tourism or any other government agency.

This app is free. Advertisements are displayed within the app to support its operation.

What’s new

Version 1.0.2 · Updated August 10, 2026

初回リリースです。国土交通省のオープンデータをもとに、周辺の不動産取引価格を地図に表示。年収を入力すると買える物件を色分けし、相場ヒート、住宅ローンの返済額試算、絞り込み・お気に入りにも対応しています。

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