Bulls & Cows is a free logical puzzle game available on Android platform. The game is developed by VMSoft and falls under the category of puzzle games. The game is also known as Mastermind, 4digits, or 1A2B. Your task is to guess the opponent's secret number with a minimum number of suggestions.

The game offers two game modes - Single player and Against Android. In Single player mode, the player needs to guess the secret number to win the game. In Against Android mode, the user chooses the difficulty level and enters their secret number. On the next turn, the opponent generates their secret number and announces the number of matching "bulls" and "cows". The winner in this competitive mode is the first person to reveal their opponent's secret number. Bulls & Cows also features a draft where you can mark digits that you think are included or not in your opponent's secret number to help you compete better.