Inclusion Criteria:  Diagnosed with CKD or on PD Treated at the Singapore General Hospital's Renal Clinic Able to read and understand English language well enough to independently follow instructions in the App and enter data in English Cognitively and physically capable and willing to interact with a digital device with internet access and perform self measurements Owns a digital device with internet access [Apple/Android running on at least iPhone operating system (iOS) v13/Android v9]  Exclusion Criteria:  Living in an assisted facility, e.g., eldercare facilities, and hospices where their care is done/provided completely by healthcare professionals Patients or caregivers who have no access to digital device with internet access Patient has a severe comorbidity or poor general physical/mental health that, in the opinion of the investigator, will not allow the patient to be a good investigation candidate (i.e., other disease processes, mental capacity, substance abuse, shortened life expectancy, vulnerable patient population) The patient is currently involved in another clinical investigation where that participation may conflict or interfere with the treatment, follow-up or results of this clinical investigation