# NefroCalc vs Ped(z)

The clearest difference is rating: NefroCalc at 5.0 against Ped(z)'s 4.0. NefroCalc also leads on review sentiment (100% vs 85%) and iOS requirement (8.0 vs 11.0). Ped(z)'s advantage is update cadence (every 6 weeks vs every 8 months) and ratings volume (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

NefroCalc holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews point the same way: 100% of NefroCalc's written reviews are positive against 85% of Ped(z)'s.

NefroCalc ships an update every 8 months, Ped(z) every 6 weeks. Both last shipped on November 6, 2026.

## The numbers

| Metric | NefroCalc | Ped(z) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/nefrocalc/id466002518/reviews)** | [4.0 (3 ratings)](https://appshunter.io/ios/app/pedz-pediatric-calculator/id498776330/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | **100.0% of reviews** | 85.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 7 MB | 17 MB |
| Requires iOS | **8.0** | 11.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Oscar Sosa](https://appshunter.io/developer/466002525) | [Daniel Gräfe](https://appshunter.io/developer/498769632) |

## What reviewers say

### NefroCalc

[App page](https://appshunter.io/ios/app/nefrocalc/id466002518)

This medical app provides quick calculations for glomerular filtration rate (GFR) using multiple established formulas. It supports CKD-EPI, MDRD, Cockcroft-Gault, and the Schwartz formula for pediatric use.

**Highlights:** GFR calculation, CKD-EPI formula, MDRD formula, Cockcroft-Gault formula, Schwartz formula for children

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Ped(z)

[App page](https://appshunter.io/ios/app/pedz-pediatric-calculator/id498776330)

This medical app provides pediatricians with a comprehensive set of calculators for body percentiles, blood pressure, echocardiography, and more. It supports various calculation methods and guidelines, aiding in accurate patient assessments. Developed by a pediatrician, it serves as a control tool for medical professionals.

**Highlights:** Body percentiles (height, weight, BMI), Blood pressure percentiles, Pediatric and fetal echocardiography Z-scores, Spirometry normal values, Gestational age calculation, QTc calculator, Hyperbilirubinemia thresholds

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is NefroCalc free?

NefroCalc is free to download, with no in-app purchases.

### Is Ped(z) free?

Ped(z) is free to download, with no in-app purchases.

### Which has better reviews, NefroCalc or Ped(z)?

NefroCalc is rated higher. NefroCalc averages 5.0 out of 5 from 1 ratings, while Ped(z) averages 4.0 from 3 ratings.

### Do NefroCalc or Ped(z) have ads?

Neither NefroCalc nor Ped(z) shows ads.

### Which is updated more often, NefroCalc or Ped(z)?

NefroCalc ships an update every 8 months, and Ped(z) every 6 weeks. Most recently, NefroCalc was updated on November 6, 2026 and Ped(z) on November 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*