Go47
Discover which of Japan's 47 prefectures
you've visited — automatically, from your photos.
Discover which of Japan's 47 prefectures
you've visited — automatically, from your photos.
How it works
Allow Go47 to read your photo library. Your photos never leave your device.
Go47 reads GPS coordinates and timestamps embedded in each photo — not the pixel data.
Every prefecture you've photographed in lights up on a beautiful Japan map.
Features
No manual logging. Just your existing photos — Go47 does the rest.
Block or geographic view, colored by how deeply you've explored each prefecture.
No accounts, no uploads. Everything stays on your iPhone.
Map labels in Japanese, Traditional Chinese, English — or all at once.
Go47 reads only GPS coordinates and timestamps already embedded in your photos — never the images themselves. All processing is 100% on-device. Read the privacy policy →