With most traditional computer chess programs, the computer plays against you and does not assist you in any way whatsoever.
Well, ok, some programs highlight all the squares to which you can move a particular piece, which is useful if you are a complete beginner...
... other programs display reams of text output with notation that displays the computer's current line of thinking, which may be useful if you are already proficient at chess.
But, in general, if you know the basics and are not an expert player, then you are on your own against the might of the computer.
Using Chessology, the computer works for you, not against you.
You are still in command, however, and you can play whichever move you want at any time.
But the computer helps you along.
When it is your turn to move, the computer is working silently in the background on your behalf, calculating and sorting the good moves from the duff moves, and looking for threats and opportunities.
Fortunately, the computer does not trouble you with all of this raw data directly!
Instead, it makes good use of a complete range of colors to paint the chess board, the pieces, the moves, the arrows, the works!
So instead of a traditional black and white board, with Chessology you now get a full multicolored board, giving you loads of visible clues on what is taking place on the chess board.
So, instead of looking like this...
...the chess board now looks like this,
and instead of this...
...you now get this!