• Apply Mobile APP Intervention ( iCKD APP) to current chronic kidney disease care program.
• Conduct a randomized clinical trial to evaluate the clinical effectiveness of this mobile device on health behavior improvement in chronic kidney disease patients.

A mHealth app (iCKD APP) was designed to assist CKD patients to monitor their home bio-information data. Patients will be randomly assigned into the iCKD APP group(intervention) and traditional care group (control). Participants will be randomized into an 1:1 manner (intervention : control). Random assignment occurred after the consent and initial enrollment interview. Individuals randomized to the iCKD APP will provide with the equipment after randomization. Participants will follow for at least 6 months before the exit interview.

Inclusion Criteria:

• Subjects are 20 years old and above, Chinese speaking, and able and willing to provide informed consent.
• Subjects own mobile devices such as cell phones and tablets.
• Subjects were diagnosed with Chronic Kidney Diseases and were taking a single antihypertensive agent for more than three months or they are not receiving treatment but with systolic blood pressure ≥140 mmHg or diastolic blood pressure ≥90 mmHg.

Exclusion Criteria:

• starting dialysis or having a kidney transplant (RRT)
• participating in other interventional study
• cognitively impaired
• unable to give consent
• life expectancy less than 1 year