Build a deck, see the total
Add cards to a deck in Binder and the total cost updates as you go. The split between holo, reverse holo, and full-art versions is up to you. The app prices what you actually pick. Most competitive deck builders end up with a "competitive cost" view (cheapest legal version of every card) and an "aspirational cost" view (full alt arts) to see both numbers.
Watch your sideboard
A single hot tech card during Regionals season can double in a week. Binder watches every card in your deck and pings you when prices move more than 15% in a 7-day window. The flip side is also useful: when a card you are holding spikes, you know.
Rotation calendar
Standard rotation matters for value. The year a set leaves Standard is usually when its prices floor. Binder tags every card with its rotation status and shows you which cards in your current decks rotate next. If you are a player who also collects, that overlap is where the real spending decisions live.
The honest part
Binder is built around English prints and the eBay market. If you play in Europe or Asia, the local market may diverge from what we show. The card identification works on Japanese prints. The price comp data does not, yet. If that matters to you, the iOS app is honest about which prices are reliable for which print.