Compendium: MTG Companion

MarkWebb

In-app purchases

About this app

Compendium is the all-in-one MTG companion built for Magic: The Gathering players and collectors. Scan cards, build decks, track your games, and get expert advice from Mox, your personal deck coach. No account required. Sign in only if you want your decks and collection synced across devices.

Play & Improve
Full-featured life counter for 1–6 players with commander damage, poison, and custom counters
Game log that tracks your wins, losses, commanders faced, and finish position
Win/loss trend analysis, play/draw splits, and rival tracking over time
Game Insights: personalized analysis of your deck's performance based on your actual game history
Pre-game matchup prep so you know what you're up against before you sit down
In-game Mox checks let you look up rules as you play

Meet Mox
Mox knows Magic: The Gathering inside and out, and now it knows your games too. Tune a Commander deck, brew something new, or work out why you keep losing to the same opponent. Mox has your back.

Search, Scan & Collect
Scryfall-style search syntax lets you find any MTG card by mana value, power, toughness, color, and type in one line
Instant card scanning adds cards to your collection in seconds
Smart filters, sets, and custom organization
Real-time prices from TCGPlayer, CardMarket, and Cardhoarder
90-day price history so you can spot trends at a glance
Wishlist cards you want with auto-updating prices, and flag trades

Build Better Decks
Deck builder for any format: Commander/EDH, Standard, Modern, Pioneer, Legacy, and more
Set your budget and preferred format once in your profile, and the deck builder starts from there automatically
Opening-hand probabilities, mana curve, color distribution, and mana health
Deck value tracking with 1-year price history
Import from Moxfield, Archidekt, or any text list, and export anywhere
Browse and import official preconstructed decks straight into your library
Compare preconstructed decks side by side before you commit, with a sharper head-to-head view

Ask Mox for deck advice, card questions, or upgrade ideas, now with clearer reasoning behind every suggestion
Get personalized Game Insights based on your real play history, not generic advice
Let Mox build you a deck from scratch or finish your half-built list, with tighter change summaries every time it reworks your list
Add cards to your wishlist, collection, or deck with a tap
Open vendor links when you're ready to buy
Find similar cards on any card page, with reasons why they fit and live prices

Explore the Game
Browse popular Commanders and open real EDHREC decklists with full card art, right inside the app
Browse upcoming and current Magic sets with release countdowns
Compare preconstructed decks side by side
Discover format staples and card prices across the meta

Free to Start. Upgrade When You're Ready.
Compendium is free to download and use. Pro unlocks advanced analytics, unlimited deck evaluations, Game Insights, cross-device sync, and the full power of Mox, including chat, deck creation, and matchup prep.

Magic: The Gathering and all related properties are trademarks of Wizards of the Coast LLC. Compendium is not affiliated with or endorsed by Wizards of the Coast.

Ratings and reviews

I have been trying to build a new commder deck, but for some reason it won't let me "tap to add commander", I found the card but it won't give me the option to select it as my commander. This has been extremely frustrating as I have tried everything multiple times. Other than that I love the app (when it actually works)

so i have seeing trying to scan cards, import from moxfield and nothing works, NOTHING, IT JUST DOES NOTHING

tried adding one of my deck but half of the cards were missing/could be found in the apps database. the analysis tools look great. I will check back later to see if they fix their database.

What’s new

Precon Progress is live — a new leaderboard shows how close your collection gets to completing any preconstructed deck.

Sign in with Apple now works properly on Android.

Fixed a crash on launch when offline, plus navigation crashes.

Squashed a bug that could downgrade paying Pro members.

Fixed Mox chat action buttons (wishlist, library, deck, buy links, exports) that could silently fail. Mox can now act on several cards in one reply.