Report updated May 11, 2026
〒検索
For users in Japan who need a fast, offline reference tool for looking up postal codes and corresponding addresses.
Overview · Full Intel report in progress
〒検索 is an established reference app that is a paid app.
What makes this app unique?
What Does It Look Like?
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What Are The Key Features?
Enables users to search for Japanese postal codes and addresses without an active internet connection.
Allows users to filter the address list by tapping or sliding across an index bar to jump to specific character groups.
Provides a secondary layer of navigation for precise selection when multiple candidates exist for a chosen character.
Supports direct input in the search bar to find postal codes by town name or addresses by postal code.
How much does it cost?
Who Built It?
Shuji Fukumoto
Providing specialized utility and productivity tools for iOS and macOS users. Focused on offline data management and personal organization.
Portfolio
11
Apps
What other apps does Shuji Fukumoto make?
Explore the full Shuji Fukumoto report
Portfolio breakdown, audience, momentum, and every app published by Shuji Fukumoto.
Analysis in progress, available soon
What do users think recently?
Analysis in progress, available soon
Analysis in progress, available soon
What is the competitive landscape for 〒検索?
How's The Reference Market?
How does it evolve in the Reference market?
Rank progression
1 active ranking tracked — 30-day window
Which niche is 〒検索 in?
to search for japanese postal codes offline
Explore the full Postal Codes Dictionarys niche
Every app in this space — 2 tracked, the niche's live rankings, and Marlvel's editorial take on the job-to-be-done.
Strategic analysis coming soon
SWOT, key takeaways & outlook
The outtake for 〒検索
Key Takeaways
This is a specialized, offline-first reference tool designed for efficient navigation of Japanese postal data.
Where Is It Heading?
Trend analysis
Available very soon