The fact that you can save values and access offline is a huge plus. Mini Scoreboard. The app has searchable, linked comprehensive rules built in, so you can settle rules disputes with ease. Consequently the trades all seem to follow the current value rather than the usually about 0 difference at the time of trade. June 17, at am. Transaction fee is calculated per-item and is rounded up to the nearest cent. It includes card prices by expansion or card name, lets you store a watchlist of wanted cards, allows you to track cards you have loaned or borrowed, even calculate the value of a trade and view your trade history.