The original CardOS™ OP TCG

Every card logged. Every dollar tracked.

Stop guessing what your collection is worth. Start tracking the real market value, cost basis, and profit/loss across your entire One Piece TCG collection: cards, DON!!, promos, sealed product, booster boxes, and graded slabs, all in one place.

Whether you search for a "One Piece TCG tracker," "OP TCG portfolio app," "card grading tracker," or "TCG investment tracker": this is that app.

WHY COLLECTORS SWITCH TO CARDOS

We include a self-declared ledger that helps you track your card value over time. Every collector has that moment where you flip through your binder and realize you forgot what you paid for half of it. That trade from six months ago? Never logged. That receipt? Long gone.

CardOS OP TCG changes that.

BUILT FOR THE GRAND LINE

A highly localized One Piece card tracker. Every feature, every update exists to serve one collection: yours.

GRADED CARD VAULT: ALL 9 GRADING COMPANIES
PSA, BGS, CGC, ACE, SGC, HGA, TAG, ARS, AGS: the deepest slab tracker and graded card portfolio app for TCG collectors. Tap to verify authenticity straight from the grader's site. Track what you paid, what it's worth now, and your profit per slab, all in one view. Can't find a card? You can enter your OWN.

REAL NUMBERS. NOT INFLATED ESTIMATES.
We pull TCGPlayer market prices and actual sales data, updated daily, tagged "Est." Disagree with a number? Change it. Every value is fully editable — because your collection, your call.

Worth tells you what it's worth today. Profit tells you what you actually made. We track both. Separately.

PORTFOLIO P&L YOU CAN TRUST
See your total gain and loss, your biggest winners, your biggest losers. Mark a card sold and watch realized profit update instantly. This is the card investment tracker feature other apps won't show you.

DON!! CARDS AND PROMOS. DONE RIGHT.
Their own dedicated tab. Search them, log them, wishlist them. Separate from your main collection. No other One Piece card tracker or TCG portfolio tracker gives DON!! and promo cards a real home.

YOUR ONE STOP SHOP FOR ONE PIECE TCG TRACKING

Search any card from OP01 through the latest sets. Add it in seconds. Log what you pulled, what you bought, what you're hunting next: all in one place. Works as a One Piece card collection app, a One Piece TCG price guide, and a TCG portfolio tracker.

FREE CORE. FOREVER.
- Unlimited card logging
- Full graded vault
- Portfolio value tracking
- Basic profit & loss
- Wishlist
- DON!! tab

All free. All the time. No paywalls on the features that matter. No scanner needed. No AI gimmicks pretending to know your cards better than you do.

PRO: FOR SERIOUS INVESTORS AND CASUAL COLLECTORS ALIKE
- Per-card P&L drill-down
- Sparkline price history charts
- CSV import and export
- Reseller profit calculator
- Hi-res slab photo storage

Search terms collectors use to find us: One Piece TCG tracker, OP TCG app, TCG portfolio tracker, card grading tracker, graded card vault, PSA BGS CGC tracker, trading card investment app, sealed product tracker, card collection value tracker, DON!! card tracker, One Piece card price tracker, slab tracker app.

CardOS is not affiliated with Bandai, Shueisha, or Toei Animation. One Piece and related names are trademarks of their respective owners.