No, both are not the same, Follicular study is done with the help of ultrasound. It is serial trans-vaginal ultrasound monitoring of the development, growth rate of the follicle and to record the exact menstrual day when rupture of follicle ( ovulation) occurs. Ovulation kit is estimation of LH hormone surge, by detection of raised LH levels in your urine. It only gives you an idea that ovulation can be expected in next 48 hours , it is not a sure marker of ovulation.