Deckster is an Android app for managing Magic: The Gathering collections, designed for everyone from casual players to professional traders. Currently in closed beta, it helps users scan cards, organize them by box, binder, shelf, or deck, and quickly find individual copies. During scanning, users can apply details such as foil status, language, and condition to a batch, while the app asks for clarification when it cannot identify a card printing confidently.

Deckster supports building decks from cards already in a collection, checking which copies are in use, and importing decklists from Arena, MTGO, Moxfield, and Archidekt. Players can track missing and spare cards for set completion, view reference prices, and record their own purchase costs and asking prices in major currencies. The card catalog is available offline, and collections can be imported from ManaBox or spreadsheets and exported as CSV or JSON. Users can also share a trade binder through a browser link.