The present study was done to evaluate two dimensions of written language proficiency i.e., complexity and accuracy through SHAD application as a social network. Moreover, the study analyzed the participants' attitude towards the mentioned application. This research was a quasi-experimental study in which two groups were compared with each other. It also focused on the quantitative method and the questionnaire data were analyzed descriptively. To do this, a total of 80 twelfth grade high school students were selected based on the convenience sampling to participate in the present work to establish an experimental group (students learning writing under SHAD app condition) and a control group (students learning writing in class condition). The data were collected and moved to SPSS software and the output is firstly analyzed and then discussed and represented. That is to say, after a course of writing training, data analysis was done by using pretest, posttest and questionnaire results. The obtained results showed that the use of SHAD application had no significant impact on improving the perfection of the student’s writing skills, while it significantly affects improving the complexity of their writing skills. The study has also illustrated the positive students’ attitude towards E-learning i.e., SHAD application. On the whole, the participants’ overall satisfaction was achieved by this study. Manuscript profile