Daily weight and fluid tracking for heart failure

People living with heart failure are often asked by their team to do two everyday things: step on the scales at the same time each day, and keep an eye on how much they drink. Neither is hard, but doing them consistently — and being able to look back at the pattern — is much easier with a tool than with a scrap of paper. Kidney Tracker is built for kidney patients and works just as well for anyone asked to track weight and fluid, and it keeps both in one tidy record on your iPhone.

Weigh daily and watch the line

If you have been asked to weigh yourself each day, the app makes recording it a few seconds' work, and then plots every reading on a chart. Seeing the line rather than a column of figures makes a gradual change easy to notice — and easy to point to when you talk it through at an appointment. Kidney Tracker does not judge or interpret your weight; it simply keeps the numbers you enter and draws the trend, so you and your team can read it.

A reminder so it happens at the same time

Consistency matters when you are comparing one day to the next, and the easiest way to be consistent is a nudge. You can set local reminders on your device — for example, to weigh at the same time each morning. They are notifications on your own iPhone, scheduled by you, and nothing is sent through a server.

Keep an eye on fluid too

Alongside weight, you can log what you drink in millilitres. If your team has given you a daily fluid figure to keep to, you can set it as your own target and the Today screen totals your intake against it and shows how much is left. Saved drink sizes, the Home-Screen widget, the Apple Watch complication and Siri all make logging a drink quick, so the running total reflects the whole day.

Everything in one report

Because your weight and your fluid live in the same app, you can bring them together in a single printable report when a review comes round. The report is generated on your device, the app keeps no copy, and it goes only where you choose to send it. If your team also asks you to note blood pressure, medications or blood results, those can sit in the same place too.

Private, with no account

There is no sign-up, no analytics and no advertising. Everything you log stays in a database on your own iPhone, so your daily weights and drinks are yours alone until you decide to share a report.

Kidney Tracker is a personal record-keeping tool. It is not a medical device and does not provide medical advice — always follow your own clinical team.