Plus vs Plunder

The Plus-Plus app helps you get the best out of your multi-colored Plus-Plus brick kits. Follow guided instructions and challenge yourself to build freely. Browse a collection of projects, get inspired by what other creators are building and share what you've built with others.

Plunder is a personal collection logbook built for anyone who collects challenge coins, patches, or pins. Create a detailed catalog of the items you own, document the history behind each piece, and build a visual record of how your collection has grown over time. Whether you collect pins, coins, medallions, souvenirs, or any other personal memorabilia, Plunder gives you one place to keep a proper manifest of it all. MAINTAIN THE MANIFEST Record the details that matter for every item in your collection. Add photos, names, categories, dates, acquisition details, prices, notes, and other information you want to preserve. Plunder turns your collection into an organized archive you can enjoy browsing. LOGGING PROVENANCE Every piece has a story. Record when it came from, who gave it to you, and any other details that make it significant to you. Over time, your log becomes more than an inventory—it becomes a history of your collection and how you built it. CHART YOUR TREASURES See where your collection came from on a personal inventory map. Items can be tied to the places where you got them, creating a geographic record of your haul and letting you look back at the people, places, or ports of call from your memories. CONSULT THE LEDGER Browse your collection visually, search through what you own, and pull up an item’s details whenever you need them. No spreadsheets, scattered photos, or forgotten notes—just one organized ledger for the things you’ve collected. BUILT FOR COLLECTORS Plunder is part collection catalog, part ship’s log, and part personal archive. It’s designed to make documenting a collection feel useful without making it feel like bookkeeping. Every piece has a provenance. Every collection has a history. So set sail sail and log your loot with Plunder.