Built for Deckbuilders
Instant Calculations
Results update as you type. No waiting, no buttons to press. Just fast, accurate math.
Frank Karsten's Formula
Choose between simple proportional math or the renowned Frank Karsten algorithm for tournament-ready precision.
All Five Colors
Enter mana pips for each color independently. Perfect for two-color aggro or five-color control.
Native iOS Design
A beautiful dark interface that feels right at home on your iPhone. No ads, no subscriptions.
Simple, Focused, Effective
A calculator-style interface designed for speed. Input your deck, get your lands.
Build Better Decks
Available now on the App Store. Free to download.
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