FizzBuzz is simple! This app counts from 1 to the number entered by the user. For every number that isn't divisible by 3 or 5, it simply displays the number. If the number is divisible by 3, it displays "Fizz". If it is divisible by 5, it displays "Buzz". And finally if it's divisible by both 3 and 5, it displays "FizzBuzz".