• 1\. Adult (≥18 years of age with no upper age limit) 2. Any sex, race and ethnicity 3. COPD diagnosis 4. Current hospital admission or observation status resulting from exacerbation of COPD or generally including respiratory signs/symptoms indicative of difficulty breathing (e.g., need for oxygen or nebulized therapy, increased use of rescue medication) 4. Telephone (landline or mobile) and internet access 5. Access to a smartphone: iPhone 6S or later model, running iOS 14.0 or later; Android 6 or later model 6. Proficient in English language due to the availability of all study materials in the English language only 7. Living/staying in the United States throughout the study duration 8. Eligible to participate in asynchronous virtual pulmonary rehabilitation in the opinion of the investigator (e.g., patients determined to be ineligible to participate may include those with acute coronary syndrome for whom an exercise regimen is not advisable at present time) 9. Willing and able to comply with study requirements 10. Able to provide written informed consent