Older or different version of the game?

At one point the characters were a bit different the dog especially, it's what got me started playing the game originally. I lost the game for a bit when I had to get a new phone. Now the graphics are different. I was curious was that a different version of the game, or was it an update on the graphics? Because if possible I'd love to use the version of the game where the dog looked more like a female collie!