Whats wrong with my account.? My points are in negative and it says i haven’t answered anything. I lost my rank as well and I was in ambitious

Maybe try refresh your account, or try to log out then log in. If none works then contact the Helping center, I'm sure they'll contact you after some minutes.

Similar thing happened to me and they deleted every answers i answered, but left out some, "your answer is not an academic bla bla bla" i swear to god, they must've been asleep doing this.

the major difference between the two is the objective and the reward of the game. candy crush has a puzzle theme with the objective of meeting a specific quota of points or objects, you are able to gain access to the next level and compete with peers on the process. on duolingo the objective is rather different, you are given sets of questions for you to answer for you to move to the next level and as for the reward, you are able to learn available language as this is an app developed to teach the user about other languages.