This is free software, developed in May 2014, to make your gameplay easier for you. All of the tracking you are normally trying to do during a game can be done by this software, allowing you to focus on your moves and concentrate on learning from your previous games. A lot of us would not normally use brain power to try and count cards or track probability, but this software will do that for you, giving you an idea of what your opponent may play next. Win or lose, this will allow you to review your gameplay so you can continue to grow as a player. On a side note, some in the game community consider using this as 'cheating' or giving an unfair advantage. While it is true that this makes a player's game tracking much easier, it really is not cheating because anyone could do the same type of tracking on a scrap piece of paper. The Hearthstone Deck Tracker just does it for you.
There are also plugins a player can download as they become available, like collection tracking, voice controls, arean helper, graveyard, battlecry, endgame, treasury, and many more. Check out all plugins and download the ones that you want. This software is a must-have if you want to improve your play and make things easier on yourself. You can do everything this software is doing for you, but why? Let it track for you. It is easy to download, free, and will automatically update itself.
This software is better than others because not only tracks game cards, but does much more, like letting you review past games and tracking game history and statistics.
Windows requirements: Windows Vista or higher. Also need .NET Framework 45 or higher (may have problems with 4.7.2, but there is a workaround)