CkdCalc
CKD予後予測アプリ
CkdCalc is #190 in Medical Paid in Japan and charting in 1 of 24 countries we track.
Updated 27 Sep 2026 · rankings refresh through the day
DeveloperYusuke Tsukamoto
CategoryMedical
Price300 JPY
Released
Rating★ 4.9 (8)
Version4.0
Age rating17+
First seen by us
25 Sep 2026
Installs (est.)100+ worldwide
Rating
4.9 ★
8 ratings
Measured
Best rank now
#190
Measured
CkdCalc on the App Store
App details
App ID
1558592717
Publisher
Yusuke Tsukamoto
Content rating
17+
CkdCalc downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. iPhone downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 24 countries.
| Country | Charts | Rank |
|---|---|---|
| MedicalPaid | #190 |
Apps near CkdCalc on the chart
Medical Paid, around #190.
Ratings
App Store, worldwide.
Rating
4.9 ★
8 ratings
Measured
Ratings
8
Measured
About CkdCalc
Ten Calculation Apps Essential for CKD Treatment. 1) Kidney Failure Risk Equation (non-North American, 4 variables), 2) Kidney Failure Risk Equation (non-North American, 6 variables), 3) Prognosis of IgA nephropathy after kidney biopsy (common to all races), 4) Prognosis of IgA nephropathy one year after renal biopsy (common to all races), 5) 2021 CKD-EPI creatinine eGFR (common to all races), 6) 2021 CKD-EPI Creatinin- Cystatin C eGFR (common to all races), 7) ACR estimation from PCR, 8) ACR estimation from urine protein test strips, 9) Dietary protein intake (for 24 hrs urine), 10) Salt intake (for early morning urine).
Latest updates
4.0
This version enables use not only in Japanese-speaking but also English-speaking countries, and by using the KFRE formula for non-North Americans, it is possible to determine the risk of progression to end-stage renal failure recommended by the KDIGO 2021 CKD guidelines. This allows for referrals to nephrologists, referrals to preventive clinics for renal replacement therapy by a multidisciplinary team, and the timing for selecting renal replacement therapy. Additionally, prognostic prediction formulas specialized for IgA nephropathy help avoid excessive immunosuppressive therapy in low-risk cases, while conversely, it is possible to determine when to initiate aggressive treatment in high-risk cases. Additionally, the new formula for estimating GFR by the 2021 CKD-EPI provides more accurate GFR for all races and people with uneven body types. It is especially useful for patients around GFR 60 with negative urine abnormality and can help prevent overdiagnosis as CKD.