Comparison

KidneyKind vs Renabook

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

KidneyKind

This app helps individuals manage kidney disease by tracking dialysis sessions, vitals, labs, medications, appointments, and care teams. It offers features like Apple Watch complications, home screen widgets, and shareable PDF summaries for easy health management and doctor visits.

Highlights
  • Dialysis session tracking
  • Daily vital signs logging
  • Lab result monitoring
  • Medication schedules and reminders
  • Fluid intake logging
  • Appointment management
  • Care team contact information
  • Transplant journey checklist
Features
Read full description

Built by someone on PD, for everyone living with kidney disease. Living with kidney disease means keeping track of more than most people realize — your dialysis sessions, daily vitals, quarterly labs, a fistful of medications, a care team scattered across different offices, and if you're waiting on a transplant, an evaluation checklist with more moving parts than anyone should have to hold in their head. KidneyKind puts it all in one place, built specifically for how dialysis patients actually live. Not a generic health app with a kidney module bolted on — every feature here exists because someone on dialysis needed it. WHAT YOU CAN TRACK • Dialysis sessions — PD manual exchanges, PD cycler, home hemodialysis, and clinic HD. Log what you need in seconds, not minutes. • Daily vitals — blood pressure, weight, fluid intake, temperature, symptoms. Trend charts over time so you can spot patterns. • Labs — a complete panel tracked over time with reference ranges flagged so you know what's in target • Medications — dose schedules, reminders, refill tracking. • Fluid intake — one-tap logging from the Home dashboard or your Apple Watch complication. • Appointments — doctor visits, lab draws, treatment schedule. Mirrors to your iOS Calendar if you want. • Care team — nephrologist, PD nurse, dietitian, transplant coordinator. Tap to call, email, or get directions. • Transplant journey — evaluation checklist, listing status, PRA history, coordinator contact. The dashboard you wish your transplant center had given you. MADE FOR REAL LIFE • Apple Watch complication for logging fluid in one tap from your wrist. • Home Screen widgets show your next dose, next appointment, or today's fluid. • Caregiver snapshot PDF — share a one-page health update with family or your doctor between visits. • Visit Summary PDF — a comprehensive printable report with charts for your nephrology appointments. • Export all your data any time as a JSON file. Your record, your file. PRIVATE BY DESIGN • Your data stays on your device, synced privately to your own iCloud if you have iCloud enabled • We do not collect, store, or sell your health data. The developer cannot access it. • No ads. No analytics. No third-party trackers. • See our privacy policy at kidneykindapp.com/privacy. SUBSCRIPTION KidneyKind is a subscription-based app with a 14-day free trial. After your trial, choose the plan that works for you: • Monthly — $3.99 • Quarterly — $10.99 (save ~8%) • 6-Month — $16.99 (save ~29%) • Annual — $29.99 (save ~37%) Subscription keeps the app running — hosting, ongoing updates, no ads. Cancel anytime in the App Store. If your subscription ever lapses, you still have read-only access to everything you've ever logged — sessions, vitals, labs, meds, care team, and transplant journey — so you're never locked out of your own health data. NOT MEDICAL ADVICE KidneyKind is a personal tracker, not a medical device. Nothing in the app is medical advice, diagnosis, or treatment. Always consult your nephrologist, dietitian, or dialysis nurse about your specific situation. In an emergency, call your emergency services number. Terms of Service: https://kidneykindapp.com/terms Privacy Policy: https://kidneykindapp.com/privacy

About

Renabook

This app serves as a digital log for individuals undergoing dialysis, allowing them to track weight, blood pressure, and fluid removed. It offers daily cards, visual charts, and integrates with Apple Health for seamless data syncing. Users can also generate clinic summaries and access emergency treatment information.

Highlights
  • Daily weight and blood pressure logging
  • Fluid removal tracking
  • Dry weight difference calculation
  • Weight, BP, and lab value charts
  • Apple Health integration
  • Clinic summary PDF export
  • Emergency treatment card
Features
Read full description

Your paper dialysis book, all in one place. Renabook is a simple log for life on dialysis: weight and blood pressure morning and evening, and the fluid removed on dialysis days. No sign-up. No ads. Your records stay on your device. ■ Cards that match the day On dialysis days you record pre- and post-dialysis weight and the fluid removed. On other days, weight and blood pressure morning and evening. Set your dialysis days once and today's cards line up for you. ■ The difference from your dry weight, as a number Enter the DW your doctor gave you and the weight card shows the difference. It makes no judgement and gives no warnings — the number is yours to take to your clinic. ■ Charts and a two-week table Weight, blood pressure, and lab values become charts. The last two weeks appear in the same table layout as a paper dialysis book. ■ Works with Apple Health (free) Weight and blood pressure that your scale or blood pressure monitor app saves to the Health app are filled into the morning and evening entries on non-dialysis days. The weight and blood pressure you record here are written to Health as well. Values you entered by hand are never overwritten. Turn it on anytime under “Link with Health” in Settings. ■ One page for your clinic Hand over your records as a clinic summary (PDF). CSV export is included. ■ An emergency and travel card Keep your treatment settings — access, dialyzer, blood flow rate, session length — on a card you can show staff at another unit, in large text, even with no signal. ■ Reminders that know your schedule Measurement reminders morning and evening, and a reminder the night before a dialysis day. No measurement reminders on dialysis days, since you are measured at the unit. Free: daily measurements, linking with Apple Health, the access check, lab values, one emergency card, and the last 90 days of the charts Pro (a one-time purchase, no subscription): the clinic PDF, CSV export, the full chart history, and managing other people Note: this app is a log and reminder for life on dialysis. It is not a dialysis record book issued by a medical provider, and it does not diagnose, treat, or provide medical advice. Always talk to the doctors and staff at your clinic about your weight, your blood pressure, and your treatment.

Screenshots

KidneyKind4 screens
Renabook4 screens

Verdict

The call

The clearest difference is monetization model: Renabook at free with in-app purchases against KidneyKind's subscription. KidneyKind's advantage is update cadence (every 6 days vs fortnightly) and device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. KidneyKind sells 4 in-app purchases, starting at $6.99 per month and Renabook sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

KidneyKind ships an update every 6 days, Renabook fortnightly. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

Scorecard3 real differences · 7 level
KidneyKind versus Renabook: the parameters behind the verdict, then further details
ParameterKidneyKindRenabook
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews—100.0% of reviews
Number of ratings2 — better—
Update frequencyEvery 6 days — betterFortnightly
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS17.017.0
Further details — not scored
Size9 MB17 MB
Age rating12+12+
DeveloperKINDSOFT LLCRAINBOW TREE LLC

Customer experience

KidneyKind

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Renabook

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

KidneyKind

Subscriptions4
  • Monthly14 Days trial$6.991 Month
  • Quarterly14 Days trial$18.993 Months
  • Semi-Annual14 Days trial$34.996 Months
Show 1 more
  • Annual14 Days trial$64.991 Year
1 purchases

Renabook

One-time1
  • Pro (Lifetime)$5.99

Questions

Is KidneyKind free?
KidneyKind is free to download, with in-app purchases available.
Is Renabook free?
Renabook is free to download, with in-app purchases available.
Do KidneyKind or Renabook have ads?
Neither KidneyKind nor Renabook shows ads.
Which is updated more often, KidneyKind or Renabook?
KidneyKind ships an update every 6 days, and Renabook fortnightly. Most recently, KidneyKind was updated on October 31, 2026 and Renabook on November 6, 2026.

Other comparisons