Inclusion Criteria  Participants must:  Be 18 years of age or older Have a confirmed diagnosis of COVID-19 with a PCR test at least 12 weeks prior Have at least one ongoing symptom consistent with Long COVID as measured by the WHO Post COVID Case Report Form (CRF) Have a minimum WHODAS (36 item) sum score of 15 Be willing to use email for study activities Be able and willing to use a smart phone application for the duration of the trial Participants must be able to read and understand English or French. Be willing and able to provide informed consent.  Exclusion Criteria  Participants must not:  Have any significant functional impairment (for example. advanced dementia, heart or lung disease) as judged by the assessing clinician Participate in another long-COVID trial where treatment is required in the protocol (pharmacological or behavioural). Observational studies will be allowed. Have symptoms consistent with Long COVID that are better explained by an alternative diagnosis