StampExplorer
By StampFun
AI-powered stamp identification and valuation for Yahoo Auctions Japan. Multi-currency (JPY / CNY / USD).
Time on the storeUnder a yearA rough range, not an exact date
Store users4As shown on the Chrome Web Store
Chrome Web Store ratingNot rated yetNo store ratings yet
Last store update11 May 2026Version 1.0.0, 5 months ago
Inside the extension
Product image 1 of 5Reviews
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The maker
This is the only listing we know of from StampFun.
- Listings
- 1
- Combined store users
- ≈4
- Store Featured
- 0
Combined users can count the same person more than once. Maker profile
Ext Watch AI
Should you build in this niche?
One research report for StampExplorer. Reports come with Plus, Pro and Max.
- Takeaway & demandCited takeaway and search volumes
- Traffic & domainPopularity rank, visits and authority
- Money & pricingPlans and prices from the maker’s site
- ReviewsComplaints and praise, quoted
- Competitors & ranksRank against the closest listings
- Build opportunityWhat to build and how to position it
- Every number shows its source and date
- Ready in a minute or two
- Report and PDF yours for 30 days