Meritnation is an online site as well as an application for all android sets that has very special features for the students as well as give a carrer guidence to the students. Some of the features of meritnation are paid as well as some are free just for the trial and one can make full use of such application as it gives the questions, solutions, mock tests as well as tye summary for each topic and you can eaisly manage it by using your mail id and your mobile number. Meritnation is a very vast site and has information on each topic that would be loved by the students.