# Ped(z) vs PediaTools

The clearest difference is price: Ped(z) at Free against PediaTools's $3.99. Ped(z) also leads on iOS requirement (11.0 vs 15.0). PediaTools's advantage is rating (5.0 vs 4.0) and review sentiment (100% vs 85%). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

Ped(z) is free to download; PediaTools costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PediaTools holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 3 and 6 respectively. Written reviews point the same way: 85% of Ped(z)'s written reviews are positive against 100% of PediaTools's.

Ped(z) ships an update every 6 weeks, PediaTools every 5 weeks. The most recent releases landed on October 26, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Ped(z) | PediaTools |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | [4.0 (3 ratings)](https://appshunter.io/ios/app/pedz-pediatric-calculator/id498776330/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/pediatools/id1661526326/reviews)** |
| Number of ratings | 3 | **6** |
| Positive reviews | 85.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 5 weeks** |
| Monetization | **Free** | Paid |
| Best chart rank | — | **#194** |
| Size | 17 MB | 134 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Daniel Gräfe](https://appshunter.io/developer/498769632) | [Gerson Rodriguez](https://appshunter.io/developer/1587778389) |

## What reviewers say

### 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


### PediaTools

[App page](https://appshunter.io/ios/app/pediatools/id1661526326)

**Currently charting:** #194 Top Paid · Medical (US App Store)

This medical app provides pediatric calculators for blood counts, fluid requirements, and nutrition. It also includes tools for GFR, hyponatremia correction, and IV drip rates, along with various pediatric scoring systems.

**Highlights:** Pediatric blood count values, Hydrocaloric and electrolyte calculations, Total Parenteral Nutrition calculations, Glomerular filtration rate (GFR) computation, Hyponatremia correction calculator, IV drip rate calculator, Pediatric scoring systems

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

**In-app purchases:** none


## Frequently asked questions

### Is Ped(z) free?

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

### Is PediaTools free?

PediaTools costs $3.99, with no in-app purchases.

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

PediaTools is rated higher. Ped(z) averages 4.0 out of 5 from 3 ratings, while PediaTools averages 5.0 from 6 ratings.

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

Neither Ped(z) nor PediaTools shows ads.

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

Ped(z) ships an update every 6 weeks, and PediaTools every 5 weeks. Most recently, Ped(z) was updated on October 26, 2026 and PediaTools on October 30, 2026.

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