An alcohol and drug intervention system and method, comprising: a server component； and a mobile application component wirelessly coupled to the server component； wherein the server component and the mobile application component are collectively operable for, in an interactive manner, receiving input from a user and presenting the user with output based on the input received from the user, wherein the input received from the user comprises one or more of personal information, activity information, and activity related to alcohol and/or drug use, and wherein the output presented to the user comprises one or more of coaching information and counseling information. Optionally, the system further comprises a testing device coupled to the mobile application component and adjusting one or more of the coaching and counseling information based on results obtained from the testing device.
