Inclusion Criteria:  individuals must be between 8-12 years old; subjects must score above 25 on the SCARED questionnaire; subjects must have access to a smart phone and internet; individuals must be willing to participate in the research study and providing informed consent.  Exclusion Criteria:  children that present with symptoms of severe depression or suicidality as measured with KSADS-PL26; children that have insufficient knowledge of the Portuguese language; subjects that are under any current treatment for anxiety disorder or using psychotropic medication.