Explore detailed information about Japanese islands, including names, locations, population, and geographical data. This lite version serves as a reference for the full application.



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Whether you want more options like 五島巡礼ナビ or a completely different take on the same concept, our curated list of 10+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.



Explore detailed information about Japanese islands, including names, locations, population, and geographical data. This lite version serves as a reference for the full application.






Track your visits to Japan's 100 famous castles and their sequels. Organize photos, notes, and visit counts for each castle. Backup your data for free or upgrade for ad-free experience, increased photo storage, and video support.


Create and share interactive maps with photos and videos. Explore user-generated reality maps from around the globe. Upload various media types and customize your map creations.












This app helps you track your journey to becoming a permanent hot spring master by guiding you through 88 hot springs. It offers various list displays, search functions, map integration, and navigation to support your exploration.