Collection tracker · Deck builder · Game tracker
Build decks from the cards you already own.
Most deck builders assume you can buy anything. MTGStack starts from your shelf: scan your collection, pick a format, and get a real, legal deck built from what's in front of you.

Everything between your binder and the table
Built for players who'd rather play the cards they have than buy a list off the internet.
Scan your collection
Point the camera at a card and it reads the name, with no typing and no barcodes. Track quantity, finish and condition, and filter by colour, type or set.
Build from what you own
Commander, Standard, Modern, Pioneer and Pauper. Pick a commander, a theme or a tribe, and get a deck balanced for lands, ramp, removal and card draw, with a reason for every pick.
Know where a deck stands
Legality checked against live card data, a warning when a card gets banned or rotates, mana curve, colour balance, a synergy score and an estimated deck value.
Upgrade it
Suggestions drawn from live community data, not a hard-coded list of staples. Cards you already own come first, as free swaps, each paired with a card to cut.
Track your games
Life totals for two or more players on one device, commander damage per opponent, and win rates by deck, format, colour and table size.
Works offline
Card data is cached on your phone, so searching, building and legality checks keep working with no signal. Your collection syncs to your account, so a lost phone doesn't mean a lost collection.
A look inside





Free where it counts
Everything driven by Magic card data is free and stays free. Premium adds convenience on top. It never puts the cards themselves behind a paywall.
Free
- Card search and scanning
- Collection tracking
- Deck building in every supported format
- Legality checks
- Which cards a deck is missing, and what they cost
- Goldfish simulator and game tracker
- No adverts, no time limit
Premium
- Unlimited saved decks
- The full list of upgrade suggestions
- The cross-deck Buy List
- The Metrics dashboard
- Cancel any time from Settings. Renews monthly until you do.
No ads. No analytics. No tracking.
Not fewer: none. There are no advertising, analytics or tracking libraries in the app at all. We don't sell your data. Card scanning happens entirely on your phone, and no photo from your camera is ever uploaded. Read the privacy policy.
Questions
Which formats are supported?
Commander, Standard, Modern, Pioneer and Pauper. Quick Build also gives you a one-tap Commander deck even with an empty collection, as a shopping list you can take to your local game store.
Is it on iPhone?
Android comes first, through Google Play. iOS isn't available yet.
Do I need an account?
Yes. Your collection and decks live in your account so they survive a lost or replaced phone. Sign in with a one-time email code or with Google.
How do I cancel Premium?
In the app, go to Settings → Subscription. It opens Stripe's billing portal, where you can cancel any time. Premium stays active until the end of the period you've paid for.
Is this an official Wizards of the Coast product?
No. MTGStack is unofficial fan content, independently made by players. See the notice at the bottom of this page.
Something's broken. Who do I tell?
Use the feedback button in the app, or email support@mtgstackdeckbuilder.com. See the support page.