One Piece card price tracker
See the market behind every card.
GrandFolio connects exact card variants to Cardmarket and TCGPlayer context, historical movement, alerts, and your total collection value.
How it works
See the market behind every card.
GrandFolio connects exact card variants to Cardmarket and TCGPlayer context, historical movement, alerts, and your total collection value.
- 01
Choose your market
Set Cardmarket or TCGPlayer as the preferred source and display prices in your chosen currency.
- 02
Open a precise variant
Current value and historical movement stay connected to the exact print, not only the card code.
- 03
Act on movement
Review risers, fallers, new cards, portfolio change, and alerts before buying or trading.
Market context
European and US sources, clearly labeled.
GrandFolio keeps the source visible so a Cardmarket value is never presented as if it came from TCGPlayer.
- Preferred marketplace setting
- Source labels next to values
- Currency-aware display
Price history
A current number is only part of the story.
Historical charts and period changes make it easier to understand whether a card is moving or simply expensive.
- Multiple time ranges
- Variant-level history when available
- Risers, fallers, trending, and new views
Portfolio
Connect market changes to the cards you actually own.
The Captain’s Log combines quantities with current values and historical context for a collection-level view.
- Total collection value
- Period change and sparkline
- Wishlist thresholds and alerts
GrandFolio · 01—05
Explore GrandFolio
GrandFolio brings your One Piece TCG collection into one private, beautifully organized log—from the first scan to the next deck or trade.
Organize your One Piece TCG collection by set and print.
Track cards by exact version, condition, and quantity while GrandFolio turns every set into a clear map of owned cards and missing gaps.
02One Piece card scannerScan the card. Keep the right print.
GrandFolio reads the card code, checks the visual version on-device, and asks for confirmation whenever the result should not be guessed.
03One Piece TCG trade checkCompare the trade before cards change hands.
Add exact variants to each side, review current market context, and see whether the value gap is balanced, slight, or significant.
FAQ · One Piece card price tracker
Price tracker FAQ
Where do GrandFolio prices come from?
GrandFolio provides labeled price context from Cardmarket and TCGPlayer.
Are prices guaranteed sale values?
No. Market data is informational. Card condition, language, location, fees, and actual demand can change a sale price.
Can I set a price alert?
Yes. Alerts can be attached to selected cards and thresholds from card details or the wishlist.
Made for iOS and Android