JUDOU
Find affordable homes on a map
Free · Designed for iPad. Not verified for macOS.
See nearby real-estate prices on a map from Japan's MLIT open data. Enter your income to see which homes fit your budget. A price heatmap shows each area's range.
JUDOU lets you see, on a map, which homes you can afford with your income and where.
Using open data from Japan's Ministry of Land, Infrastructure, Transport and Tourism (MLIT) "Real Estate Library", JUDOU shows actual real-estate transaction prices on the map. Enter your annual income and a simple loan estimate computes your maximum purchase price, then colors each home as affordable (blue), over budget (pink), or no price data (purple). Over-budget homes still show in pink so you can read the local market while you explore.
Tap a home for details: price, floor area, price per square meter, layout, year built, structure, location, and transaction period, plus the estimated monthly repayment under your current loan assumptions.
Key features:
- Real-estate transaction prices around you on a map (nearby homes are grouped with their average price; tap a group for a list sorted by price)
- Estimates your maximum budget from your income (spouse's income optional), own funds, existing loan payments, interest rate and term, and colors homes you can and cannot afford
- Home details with the estimated monthly repayment
- Price heatmap: each area's average price in color bands (blue = affordable to red = expensive), with a legend
- Filter by price, floor area, building age and layout
- Save favorites and compare 2 to 3 homes side by side
- Search by station, place name or address
- Today's featured area and a recommended home within your budget
- Covers the latest 8 quarters of transactions; new quarters appear automatically once published
- Japanese and English (amounts in thousands of yen in English)
Your income, favorites and filters are stored only on your device. No account is required.
Data source (official site): MLIT Real Estate Library
https://www.reinfolib.mlit.go.jp/
Prices reflect past transactions, not homes currently for sale or asking prices. The loan estimate is approximate and does not guarantee actual loan terms or eligibility.
Disclaimer: JUDOU is an unofficial app developed and provided by Fuji Bit Inc. It is not affiliated with, endorsed by, or representing the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) or any other government agency.
Pricing: JUDOU is free. There are no in-app purchases and no subscriptions. Ads are shown in the app to support its operation.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Fixed an issue where the app would not launch on the latest iOS
- The keyboard no longer hides input fields or the Apply button on the Budget and Filter screens
- Fixed the ad area sometimes not reappearing after returning to the app
- Stability improvements
The developer, Fuji Bit Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Fuji Bit Inc.
- Size
- 20.7 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - iPad
Requires iPadOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- Contains
Advertising
- Copyright
- © 2026 Fuji Bit