Built by someone who lives with it

Your companion through kidney disease.

Kidni supports you through every phase of chronic kidney disease – from pre-dialysis through peritoneal and hemodialysis to transplantation. The app adapts to your phase and shows exactly the tools you need right now.

  • No account needed
  • Data stays on your device
  • 10 languages

Your phase, your app

Chronic kidney disease has many phases. Kidni knows every one of them.

At the start you pick your treatment phase – the app arranges navigation, tools and reminders around it. When your phase changes, Kidni changes with you.

PHASE 1
Predialysis

Keep blood pressure, fluid intake and appointments in view – so you can shape the course of things yourself.

PHASE 2
Peritoneal dialysis

Log exchanges with time, ultrafiltration and effluent colour – warning signs included.

PHASE 3
Hemodialysis

Plan clinic appointments and record each session with weight, pulse and symptoms.

PHASE 4
Transplantation

Take immunosuppressants on time – with a time-critical alarm that cannot be swiped away.

At your side every day

Everything that matters in one place – no more paper slips.

PRO
Nutrition under control

Track potassium, phosphate, sodium, protein and fluid. Daily rings show at a glance where you stand – with a food database, your own foods and recipes.

PRO
Make sense of lab values

Record creatinine, GFR, potassium and more, and see them over time. Import your lab report as a PDF – the values are detected automatically.

Medication reminders you can rely on

Reminders for every medication – time-critical if you want, so vital doses like immunosuppressants never slip through.

A fluid tracker with your limit

Log your intake against a personal daily limit. Blood pressure, pulse and weight sync with Apple Health or Health Connect if you allow it.

Appointments you will not miss

Doctor and dialysis appointments with a reminder and an entry in your calendar – preparation included.

For your next consultation

A PDF report with your values and trend charts – ready to share with your practice or clinic.

Kidni Pro: buy once, keep forever.

Nutrition and lab values unlock with a single purchase – no subscription. Pro also removes the ads.

Your data belongs to you

Health data is private. Full stop.

Kidni works without an account and without registration. Your entries stay on your device and can be deleted completely at any time – you decide what you share and with whom.

No account, no registration, no tracking of your health data
All entries stay local on your device – backed up through your system backup
Complete deletion at any time in the settings

Kidni grew out of living with it.

There is no company behind Kidni, just a person who lives with chronic kidney disease. Out of an everyday life of values, appointments and medications came the app that did not exist back then – and that should make things easier for others today.

Made in Germany · Built against the yardstick of one patient's own treatment

Knowledge that helps

Living with kidney disease: the guide.

An evidence-based practical guide from diagnosis to transplantation – written to be understood, searchable and free. With an emergency card, nutrition knowledge and questions for your next appointment.

Read the guide
Emergency Predialysis Peritoneal dialysis Hemodialysis Transplantation Nutrition Travel