Welcome to perf48

perf48 is a philatelic analytics platform for the data-driven stamp collector.

Browse or search our data; simply click on the stamps you own
Earn color-coded badges where your stamp collection is strong to visualize patterns and opportunities in the data
Using artificial intelligence, perf48 automatically creates a want list of the next-best stamps to add to your collection
Worldwide stamp data & analytics as-a-service for about the cost of 1 standard rate stamp per week

Benefits you can't get anywhere else

A philatelic-specific algorithm analyzes your collection and makes personalized recommendations for the next-best stamps to collect which will enhance your collection most efficiently
Your want list is automatically compiled and goes with you anywhere.
Focus your stamp buying so you purchase strategically and spend your hobby budget wisely
As you buy stamps (online, at a stamp show or in a store), personalized next-best stamp recommendations update in real time
As you add stamps to your collection, perf48 automatically informs you how the new stamp helps your collection, so you appreciate each acquisition
You'll purposefully hit collection milestones more quickly and frequently, which helps your stamp collection be more meaningful, quantitatively and qualitatively

Free database access

For many stamp collectors, perf48 is an essential philatelic tool. With a free perf48 account, you can browse the database, run queries and analytics against our data with over 10 filtering criteria.

perf48's simple, clean, responsive design uses icons and hover hints to display all data about a stamp in one row, with 1,000 stamps per scroll, minimizing clicks to the next page.

Upgrade to a paid subscription to track your stamps

By upgrading your free account to a paid subscription, you can track your stamps, visualize the data, and run analytics on your collection.

No data entry! The stamps are already entered, simply click on which you own.

Subscriptions enable perf48's analytics, visualization and next-best stamp recommendation engine.

US$2.48 per month to subscribe to our ad-free software-as-a-service stamp analytics platform. Cancel anytime.

Philately's first AI-driven stamp collection management platform

As you click stamps in your collection, perf48 automatically highlights where your collection is strong.

Our color-coded badges offer a unique data visualization of where your collection is complete. perf48 finds the best places to fill in the gaps and automatically brings recommendations to your attention.

Watch your collection grow on your personalized dashboard. For every country, perf48 offers 7 metrics at-a-glance to understand the quality of each country. Another AI engine is used on the dashboard: it automatically recommends a collecting strategy for every country, so you know the kind of material for which to search.

Collector-friendly

Secure & private: we don't collect personal or location data; we only store email address as a username.

Designed by philatelists to be simple, clean & easy-to-use. Paper-free & eco-friendly. No annoying pop-up windows, ever. No marketing emails. No customer tracking. No advertising.

We sell stamps too

You can buy stamps from perf48. Icons in the database and in your personalized recommendations identify the 65,000 worldwide stamps and 3,800 complete sets we have for sale in our stamp store: