About this app
This mobile app is designed for people who need to limit their fluid intake, especially people with hyponatremia, kidney failure, or heart disease. It includes a fluid tracker, weight tracker, blood pressure tracker, nutrition tips, appointment diary, and more. It also describes the link between kidney disease, heart disease, and hyponatremia, and provides important medical information about risk factors, symptoms, treatments, when to call a doctor, and much more. The National Kidney Foundation is the leading organization in the U.S. dedicated to the awareness, prevention, and treatment of kidney disease for hundreds of thousands of healthcare professionals, millions of patients and their families, and tens of millions of Americans at risk. By supporting the National Kidney Foundation, you directly influence and positively impact the lives of those at risk for kidney disease, those living with chronic kidney disease, and those who care for and about them. Learn more at www.kidney.org
Latest release
What’s New
This app has been updated by Apple to prepare for watchOS 27 compatibility. No new features are included. Rendered for iPad.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 28, 2026 · 4:34 PM Free
Screenshots
