KuCalc vs FEUrea Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KuCalc
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It is a calculator with basic functions. We pursued ease of use with a minimum number of buttons. It has a history function. It can copy the results to clipboard.
FEUrea Calculator
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Fractional Excretion of Urea (FEUrea). Quick and easy to use FEUrea calculator. Enter required data to get FEUrea percentage result: Serum Urea/BUN: mg\dL or mmol/L Serum Creatinine: mg\dL or µmol/L Urine Urea: mg\dL or mmol/L Urine Creatinine: mg\dL or µmol/L No fuss calculator. It does what it says on the tin.
Screenshots
Verdict
KuCalc and FEUrea Calculator are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
KuCalc ships an update every 3 months, FEUrea Calculator every 5 months. The most recent releases landed on October 7, 2026 and October 25, 2026 respectively.
| Parameter | KuCalc | FEUrea Calculator |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 12.1 |
| Further details — not scored | ||
| Size | 1 MB | 13 MB |
| Age rating | 17+ | 4+ |
| Developer | Mineaki Sakatoku | Krzysztof Gwiazda |
In-app purchases
KuCalc
No in-app purchases
FEUrea Calculator
No in-app purchases
