Know every card you own.
Collection Tracker
Create unlimited collections to organize your physical Yu-Gi-Oh! cards. Track what you own, identify gaps, and see your collection value across every expansion.
A Yu-Gi-Oh! collection tracker is a structured record of every card you physically own, organized by printing, condition, and quantity. YuScan turns the messy reality of card storage — binders, deck boxes, top loaders, sealed product, the shoebox under the desk — into a searchable inventory you can value, audit, and share. The fastest path from a pile of cards to a working inventory is the camera: scan, tap to add, repeat.
Most existing trackers treat a collection as a flat list of card names. YuScan tracks at the printing level, which is the correct unit of analysis for both pricing and trading. A Solemn Judgment in the original 1st Edition Pharaonic Guardian is a different product from the Quarter Century Secret Rare reprint, even though both share a name. Collection value, expansion progress, and trade-up planning all depend on tracking the right granularity.
Collections are local-first. The data lives on your iPhone in an encrypted on-device database, gets backed up to iCloud if you opt in, and works offline. You can edit, add, and audit collections at a tournament, in a card shop, or on a flight without any network at all.
Unlimited Collections
Create as many collections as you need — one for your binder, one for trade stock, one per deck box. Name and organize them however you like.
Scan to Add
The fastest way to catalog your cards. Scan a card and add it to any collection with one tap. No manual entry needed.
Expansion Progress
See how complete your collection is for each expansion. Track percentage collected with visual progress indicators.
Duplicate Detection
Built-in tools to find and manage duplicate cards across your collections. Know exactly how many copies you have.
Collection Value
See the total market value of each collection using live pricing data from TCGPlayer, Cardmarket, and more.
Offline Access
Your collection data is stored locally on your device. Access it anytime, anywhere — no internet connection required.
More Screenshots
How collection tracking works in YuScan
Each collection is a named container with its own card list. Most users start with one default collection, then split into "Binder", "Trade Binder", "Sealed Product", and per-deck collections as the inventory grows. Collections do not have to be mutually exclusive — the same card can live in multiple collections (e.g. a deck and a "Tournament Legal Cards" master list) so you can model the way you actually store cards rather than fighting the app.
Adding a card is a two-step process: scan to identify the printing, tap to add the count. Quantity, condition (Near Mint through Damaged), language, and any per-card notes are captured at add time. The full add flow takes about three seconds per card once you are in a rhythm — fast enough that cataloging a 500-card binder is a single-evening task, not a weekend project.
Collections roll up into expansion progress: for each set, YuScan shows what percentage you own by unique card and by printing. Completionists can use this to find missing cards in a single tap; budget players use it to avoid buying duplicates of cards they already have in different rarities.
When to use collection tracking
Tracking matters most when the collection grows beyond the size you can mentally inventory. The threshold differs per player but is usually somewhere between 200 and 500 unique cards. Below that, a binder works. Above it, you start double-buying cards you already own, forgetting which Structure Decks you opened, and losing track of trade stock. A working collection tracker pays for itself the first time you avoid a duplicate $30 purchase.
For collectors and grading-curious players, the tracker doubles as a valuation tool. Each card carries live prices from TCGPlayer, Cardmarket, eBay, Amazon, and CoolStuffInc, so the per-collection total reflects the current market — not a frozen snapshot from when you added the card. Set the collection value to your preferred currency once and YuScan handles the conversion, including for sealed product valued at MSRP-equivalent.
For trading and selling, the tracker exposes per-printing duplicates and condition data so you can build a trade binder list quickly. Filter by rarity, by archetype, by condition above Near Mint, and you have a ready-to-share trade list in under a minute.
Frequently asked questions
How many cards can a single YuScan collection hold?
There is no hard cap. Collections of 50,000+ cards have been imported and queried in production. Storage and search both scale linearly because the on-device database is indexed at the printing level. The practical limit is whatever fits on your iPhone, which for a database-only collection is well into the millions of entries before you would notice.
Does the collection sync between devices?
iCloud sync is supported and disabled by default. Enabling it backs up the collection database to your private iCloud and restores on a new device or a fresh install. Sync runs over the standard iOS encrypted-at-rest stack, so YuScan never sees your collection data.
Can I import a collection from another tracker app or a CSV?
CSV import is supported for any tracker that exports card name, set code, and quantity. The import maps each row to a printing in the YuScan database and flags any rows that need disambiguation (e.g. multiple rarities for the same set code). After import, scan or tap to fix the flagged rows; everything else is added immediately.
How is collection value calculated?
Each card in the collection is multiplied by its live market price for the chosen price source (TCGPlayer market, Cardmarket trend, eBay sold-listing median, etc.), summed, and converted to your preferred currency. Sealed product is valued separately using MSRP-equivalent or the per-set market when available. Pricing refreshes when the app fetches new data; you can also force a refresh manually.
Does the collection tracker work offline?
Yes for everything except live price fetches. You can add cards, edit, audit, and view your collection completely offline. When the app reconnects, prices update in the background and the collection-value totals refresh.
Can I track condition (Near Mint, Lightly Played, etc.) per card?
Yes. Each card entry has a condition field with the standard PSA/BGS-aligned tiers (Near Mint, Lightly Played, Moderately Played, Heavily Played, Damaged) and an optional per-card note. Condition affects calculated value when you choose a price source that reports condition tiers.
