Planechase Companion is an iPhone application designed to facilitate playing the Planechase variant for tabletop Magic the Gathering. It supports both classic Planechase and the eternities map variant, enhancing the gaming experience for players. The app displays cards in four different orientations, ensuring that all players can easily read the text regardless of their position at the table.

Moreover, users have the ability to import custom Planechase cards created by the community or themselves, adding a personalized touch to the game. With the option to separate collections into up to 10 different decks, players can effortlessly switch between various setups, making gameplay smoother and more organized.