Ethical approval and consent to participate

The study was approved by the Ethics Committee of Tehran University of Medical Sciences (IR.TUMS.FNM.REC.1400.068). It was also registered in the Iranian Registry of Clinical Trials (code: IRCT20191231045966N1) (18/07/2021). The participants were assured of data confidentiality and informed written consent was obtained from them. Moreover, based on research ethics principles, the app was also installed on the mobile phones of the participants in the control group at the end of the study. It also should be notified all methods were carried out in accordance with relevant guidelines and regulations.