Inclusion Criteria:  In order to be eligible to participate in this study, a subject must meet all of the following criteria:  are between 18-64 years old Have a fear of flying, heights, spiders, dogs, needles and score above 4 on the Brief Standard Self rating scale for phobic patients (Marks, I. Matthews ,A (1979) Behaviour Research and Therapy) have access to a smart phone and internet willing to participate in the research study and providing informed consent  Exclusion Criteria:  A potential subject who meets any of the following criteria will be excluded from participation in this study:  present with symptoms of severe depression or suicidality respectively as measured with the PHQ-9; total score > 19 have insufficient knowledge of the English language are under current treatment for specific phobia or psychotropic medication (unless on stable dosage for the previous 3 months and no changes planned during the study period).