Ped(z) vs Coma scales
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ped(z)
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.
- Body percentiles (height, weight, BMI)
- Blood pressure percentiles
- Pediatric and fetal echocardiography Z-scores
- Spirometry normal values
- Gestational age calculation
- QTc calculator
- Hyperbilirubinemia thresholds
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Helpful pediatric app for pediatricians, developed by a pediatrician. Helps with: • Body percentiles: Calculation of several somatic percentiles (height, weight, head circumference, BMI etc.) according to: - Kromeyer-Hauschild et al. 2001 - Hesse et al. 2016/2017 - Braegger C et al. 2011 (Züricher Longitudinalstudie) - KiGGS study RKI 2013 - WHO Growth Charts - CDC Growth Charts 2000 - Zemel et al 2015 (Mb Down) • Blood Pressure percentiles: Normal values for blood pressure according to: - KiGGS study RKI 2013 - AHA 4. Task Force Report 2005 • Pediatric Echocardiography: Z-Scores for pediatric echocardiography according to: - Gautier et al. 2010 - Kampmann et al. 2000 - Zilberman et al. 2005 - Peterssen et al. 2008 - Dallaire et al. 2011 - Dallaire et al. 2016 - Koestenberger et. al 2009, 2012, 2012, 2014 • Fetal echocardiography: Z-Scores for fetal echocardiography according to: - Lee 2010 • Birth percentiles: Calculation for term and preterm newborns according to: - Voigt et al. 2006 - Fenton TR, Kim JH. A systematic review and meta-analysis to revise the Fenton growth chart for preterm infants. BMC Pediatr. 2013; 13:59 biomedcentral.com/1471-2431/13/59 • Spirometry normal values: Spirometric z-scores and normal values according to: - Quanjer, P.H. et al. 2012 • Kidney percentiles: Z-Scores for ultrasound according to: - Deeg/Weitzel et al. 1997 - Weizel 2012 • Syringe pump: Calculates Dosage or other parameters • Gestational age: No more counting days/weeks in calendars • QTc calculator: Corrected QT interval, QTc, either by RR-Interval or heart rate • Body surface area: BSA according to Mosteller or DuBois • ECG normal values: For Children and adults according to Park MK and Guntheroth WG 2006 • Target height: Estimated target height calculated by their parent's height according to Hermanussen et al 2003 • Hyperbilirubinemia: Thresholds for phototherapy and exchange transfusion according to the german AWMF guideline 024 - 007 DISCLAIMER: No warranty. Use it only as control to your own calculations. Please seek a doctor’s advice in addition to using this app and before making any medical decisions
Coma scales
This medical app offers essential tools for assessing patient consciousness. It includes the Glasgow Coma Scale for head injuries, the FOUR Score for intubated patients, and the Disability Rating Scale for predicting recovery.
- Glasgow Coma Scale (Adult & Pediatric)
- FOUR Score
- Disability Rating Scale
- Apple Watch companion app
- Fast consciousness assessment
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This application provides several commonly used scales for assessment of patients with consciousness troubles: - Adult & Pediatric Glasgow Coma Scale, which is the most frequently used score to evaluate the conscious state, particularly after a traumatic brain injury - FOUR Score which can be used for intubated patients - Disability Rating Scale which is used to predict the degree of disability depending on clinical recovery *** Apple Watch app included *** The included Apple Watch app allows a very easy & very fast determination of the Glasgow Coma Scale and FOUR Score!
Screenshots
Verdict
The clearest difference is review sentiment: Ped(z) at 85% against Coma scales's 0%. Ped(z) also leads on price (Free vs $0.99) and update cadence (every 6 weeks vs every 10 months). Coma scales's advantage is iOS requirement (9.0 vs 11.0). On ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Ped(z) is free to download; Coma scales costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Ped(z) ships an update every 6 weeks, Coma scales every 10 months. The most recent releases landed on September 22, 2026 and September 26, 2026 respectively.
| Parameter | Ped(z) | Coma scales |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.0 (3 ratings) — better | — |
| Positive reviews | 85.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 3 — better | — |
| Update frequency | Every 6 weeks — better | Every 10 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 11.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 17 MB | 37 MB |
| Age rating | 17+ | 17+ |
| Developer | Daniel Gräfe | Mikael Cohen |
Customer experience
Ped(z)
Coma scales
In-app purchases
Ped(z)
No in-app purchases
Coma scales
No in-app purchases








