OneCollector OPTCG Companion vs On Deck by MDC

OneCollector is the all-in-one app for OPTCG collectors and players: card scanner, prices from multiple markets, price alerts and deck builder. SCAN YOUR CARDS INSTANTLY • Up to 9 cards recognized in a single photo • Add them to your collection or check their price right away YOUR COLLECTION'S VALUE • Cardmarket prices in euros • TCGplayer prices in dollars for English cards • Total value of your collection and its history • Price chart for every card • Price alerts: get notified when a card hits your price EVERY CARD • All cards from the English, Japanese and French sets • Variants and alternate arts, progress per set and rarity • Sealed products FOLLOW THE MARKET • Choose your market: Cardmarket or TCGplayer • Hot cards: the strongest price moves of the last 6 months, every day • Market movers: the biggest gainers and losers across cards and products • Best sellers, top cards and bargains DECK BUILDER • Build, manage and analyze your decks with detailed statistics • Meta and tournament decks, recommended decks • Import, export and share your decks AND MORE • Pack simulator • Shareable wishlists and custom tags • Collection statistics and CSV export • Real-time sync across your devices • App in English, German, French, Spanish and Italian A REAL DEVELOPER, A REAL COMMUNITY Behind OneCollector is a real developer, not an app factory. Ask questions, share ideas and get the latest news directly on our Discord. Some features require a OneCollector Pro subscription. OneCollector is an unofficial app and is not affiliated with or endorsed by Bandai. Terms of Usage: https://www.onecollector.de/terms

On Deck by MDC is an inventory, sales, and show-prep platform built for trading card collectors, vendors, and hobby sellers. Manage raw cards and graded slabs, organize collections, track cost and market value, prepare inventory for shows, build trades and bundles, and keep sold cards organized — all from one connected inventory. Whether you collect, sell locally, vend at card shows, or sell online, On Deck gives you a faster way to manage your cards without relying on spreadsheets. FEATURES • RAW & GRADED INVENTORY Track raw cards and graded slabs with card details, cost, market value, grading information, certification numbers, and collection data. • COLLECTION MANAGEMENT Create and organize collections while keeping your inventory searchable and easy to manage. • ON DECK SHOW PREP Move cards into your active selling lineup and quickly access the inventory you plan to bring to a show. • VENDOR MODE Prepare cards for in-person selling, manage show inventory, view pricing targets, and use customizable QR price labels. • TRADE & BUNDLE TOOLS Build multi-card deals and trades while viewing individual and combined market values. • PRIVATE SALES Create a shareable sales catalog from your inventory, add card images, receive buyer inquiries, and manage potential deals. • EBAY MODE Estimate selling fees, shipping costs, and expected take-home amounts before listing or accepting an offer. • COST & MARKET TRACKING Compare what you paid against current market values so you can better understand inventory value and margins. • SOLD CARD TRACKING Record sales while keeping transaction information connected to your inventory history. • FAST SEARCH & FILTERING Quickly find cards across your inventory and collections. • QR & CAMERA WORKFLOWS Use scanning tools to speed up inventory management and card access. • CLOUD SYNC Your inventory is connected to your account and available across supported devices. On Deck by MDC was built around the actual workflow of collectors and card sellers — from adding a card to inventory to preparing for a show, making a trade, or completing a sale. Spend less time managing spreadsheets and more time working with your collection.