Know the trade before you make it.

Trade D. Check is the portfolio tracker and trade evaluator for One Piece TCG collectors — built to tell you what a card is really worth, and where it’s headed next.

Coming soon to the App Store

In testing now — check back soon.

Trade Evaluator

Drop in both sides of a trade and get an instant accept, reject, or counter call — with the reasoning behind it, not just a verdict.

Portfolio Tracking

Log every card you own and watch your collection's total value, gains, and movers update as the market shifts.

Market Predictor

See where a card's value is likely headed next, driven by tournament meta, banlist changes, and story beats.

News & Signals

Surface the news that actually moves prices — before it's priced in — so you're never trading on stale information.

Trade smarter. Not on vibes.

Get notified the moment Trade D. Check lands on the App Store.

Notify me at launch