Based on the screenshots, I wasn't expecting anything quite as thought-provoking as Akinator (the actually fun character guessing game) but seriously... this is pretty darn bad!
The gameplay consists of a series of multiple-choice questions about your lifestyle. One question asks what of the following choices you'd most likely eat, and two of the answers are (quoted verbatim, including capitalization): "Anything junk Foods" and "I eat very less. Soups is fine." Wow, very Best grammars!
Hilariously, all the questions are meaningless in the end. During the quiz (after determining if you were born before 1990), WhatsMyAgeMagic gives you a special number, then tells you to ADD YOUR AGE TO THAT NUMBER, to make a new 3 digit number. To its credit, you don't tell WhatsMyAgeMagic this number directly, but add the first digit to the other two, but it's programmed in such a predetermined way there's no way it could possibly get it wrong. Seriously folks... WhatsMyAgeMagic just has you tell it your age, and it spits it back out. Magic!