Comparison

Kidney Guard vs Kidneybook

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

Head to head
About

Kidney Guard

Features
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Kidney Guard helps you track kidney health with confidence. Whether you're managing Chronic Kidney Disease (CKD), monitoring recovery after a kidney transplant, or keeping an eye on kidney function following an infection or injury, everything you need is organized in one place. Record your lab results after every nephrology appointment, monitor long-term trends in kidney function, and receive alerts when important values move outside your personalized target range. **LAB RESULTS & eGFR TRACKING** * Record creatinine, eGFR, BUN, and electrolytes including potassium (K+), phosphorus (P), and sodium (Na+) * Automatically estimate eGFR using the race-free CKD-EPI 2021 equation * View CKD stage (G1-G5) with easy-to-read trend charts **DAILY HEALTH MONITORING** * Track blood pressure with hypertension category labels * Monitor daily fluid intake with a personalized intake goal * Keep a symptom journal for fatigue, swelling, nausea, and 14 additional CKD-related symptoms **MEDICATIONS & APPOINTMENTS** * Maintain a complete medication list with dosage, schedule, and start date * Schedule nephrology visits, dialysis sessions, laboratory tests, and other appointments * Log dialysis sessions, including treatment duration, weight changes, and ultrafiltration (UF) volume **TOOLS & REPORTS** * Built-in eGFR calculator using the CKD-EPI 2021 equation * Food lookup for potassium and phosphorus to support kidney-friendly eating * Generate a shareable doctor report summarizing your health records in seconds * Emergency Card with your diagnosis, medications, allergies, and emergency contact information **PRIVACY & YOUR DATA** * Your data is stored locally on your device * Export your records as CSV or JSON * Back up and restore your data with Google Drive Kidney Guard is designed as a personal health tracking and record-keeping tool. It helps you organize your kidney health information so you can better understand your progress and have more informed conversations with your healthcare team. It does not provide medical advice, diagnosis, or treatment. Download Kidney Guard today and start tracking your kidney health with confidence.

About

Kidneybook

Features
Read full description

Your lab reports, as one line. Kidneybook is a simple log for chronic kidney disease. Type in the creatinine and eGFR values you get at each appointment and years of history become clear at a glance. No sign-up. No ads. Everything stays on your device. โ–  16 lab items, all free Creatinine, eGFR, urea nitrogen, uric acid, urine protein, urine albumin, potassium, phosphorus, sodium, calcium, albumin, hemoglobin, LDL cholesterol and more. Add your own items when your clinic measures something that isn't here, and reorder or hide the ones you don't use. โ–  Work back through the folder Start with your most recent report, then use Save and go to the previous test โ€” the date steps back by your appointment interval. You can enter years of old reports in order, up to 20 years back. โ–  The difference from last time, and nothing more Each value shows the change from the previous test with a + or โˆ’. There is no colour-coding, no reference ranges, no "abnormal" flag, and no eGFR calculation. It is your record, not a judgement. โ–  Daily weight and blood pressure, if you want them Turn on the Daily tab to record weight and blood pressure at home, morning and evening. Leave it off if you only want lab values. โ–  One page for the clinic The last 12 tests as a single landscape table (Pro). Free: all 16 lab items, adding and reordering items, entering past tests, and the last 90 days of the charts. Pro (a one-time purchase, no subscription): charts over all time, the clinic PDF, CSV export, and managing other people. Note: this app is a log for your lab results. It does not diagnose, treat, or provide medical advice; it makes no comparison against reference ranges and does not calculate eGFR. Always talk to your doctor about your values, how you feel, and your treatment.

Screenshots

Kidney Guard4 screens
Kidneybook3 screens

Verdict

The call

The clearest difference is ads: Kidneybook at none against Kidney Guard's shown. Kidney Guard's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, update cadence and in-app purchases there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Kidney Guard ships an update fortnightly, Kidneybook every 2 weeks. Both last shipped on October 31, 2026.

Scorecard3 real differences ยท 3 level
Kidney Guard versus Kidneybook: the parameters behind the verdict, then further details
ParameterKidney GuardKidneybook
PriceFreeFree
Update frequencyFortnightlyEvery 2 weeks โ€” better
AdsYesNo โ€” better
In-app purchasesNoNo
DevicesiPhone, iPad, iPod โ€” betteriPhone
Requires iOS15.0 โ€” better17.0
Further details โ€” not scored
Size30 MB12 MB
Age rating17+12+
DeveloperLuc Pham VanRAINBOW TREE LLC

In-app purchases

None

Kidney Guard

No in-app purchases

None

Kidneybook

No in-app purchases

Questions

Is Kidney Guard free?
Kidney Guard is free to download, with no in-app purchases.
Is Kidneybook free?
Kidneybook is free to download, with no in-app purchases.
Do Kidney Guard or Kidneybook have ads?
Kidney Guard shows ads; Kidneybook does not.
Which is updated more often, Kidney Guard or Kidneybook?
Kidney Guard ships an update fortnightly, and Kidneybook every 2 weeks. Most recently, Kidney Guard was updated on October 31, 2026 and Kidneybook on October 31, 2026.

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