US Stamps Collecting

Comprehensive catalog of US and US revenue stamps, powered by the Colnect community.

Mobile appfreemium

A mobile app that provides a comprehensive catalog of US and US revenue stamps, compiled with data from the Colnect community. It helps US stamp collectors identify items, browse a full catalog, and organize what they own through a freemium catalog and collection-tracking tools.

Website iOS

Full match profile

Behind the summary, Matchbox keeps a richer profile of US Stamps Collecting - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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