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Tap Add Card on your collection. Photograph the card and the details are read off it for you to check, enter it by hand, or import a whole spreadsheet via CSV.

Use CSV Import to bring an existing spreadsheet collection into Grails. Map your columns once and every card is created with its purchase price and value.

Select a card and choose Marketplace Selling to create a listing. Buyers can pay instantly with Buy now — Grails holds the payment until the card arrives — or contact you through messaging to arrange the deal directly. Selling is the Premium feature; the subscription is all a seller pays, and no commission comes out of the sale.

Browsing, buying and messaging are free for every account. Selling is part of the Premium subscription, and we take no commission on a sale — not a percentage, not a listing fee, nothing when it sells. The price you agree is the price the seller gets. Buying with Buy now adds one thing: a payment-protection fee, charged to the buyer at checkout and passed straight through at cost — about $2.50 on a $100 card — refunded in full if the order falls through. A chat-arranged sale, paid directly between the two of you, has no fee at all. The flat subscription is what funds the site.

You're handing money to someone you've never met. There's no escrow here and no buyer protection, so the care is on both of you. Keep the conversation in the app. Never pay by gift card or crypto — that's how people get robbed, and once it's gone it's gone. Be wary of a rush, and of a price too good for the card. Read the reviews. Our server writes them after a sale completes, so nobody can post their own. If something feels wrong, there's a report button on the listing, the profile and the conversation.

Your first month of Premium is free. After it, Premium renews at A$14.99 a month unless you cancel, and cancelling any time before the month is up costs you nothing. Cancel and you move to the Free plan — your collection, your sold history and everything you have added stay exactly as they are. The free month is one per account.

Export your full collection to CSV whenever you like. Your data stays private and you can leave at any time.

Save the certification number on the card and Grails links straight to that card’s page on PSA, where you can check the grade and save the official photo. PSA closed its lookup service to outside apps, so the details are not filled in for you.

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