Checkmate is a savings app with over one million users that have saved $$$ on brands like GameStop.
The Checkmate extension automatically applies GameStop discount codes, GameStop coupons and more to give you discounts on products like Pokemon Trading Card Game: Roaring Moon ex or Iron Valiant ex Deluxe Battle Box (Styles May Vary).
Checkmate users have also been loving these products from GameStop.
Users have been saving products like this to their collections.