Ped(z) vs Face2Gene
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
Face2Gene
This app assists healthcare professionals in performing comprehensive genetic evaluations by detecting dysmorphic features and revealing related traits. It aids in discovering relevant genetic disorders and offers collaborative case review forums for diagnostic dilemmas. The tool is designed for informational purposes and requires medical training to use.
- Deep phenotyping for patient evaluation
- Detect dysmorphic features and traits
- Discover related genetic disorders
- Access London Medical Database
- Collaborative case review forums
- HIPAA and GDPR compliant
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*** Face2Gene is designated to be used solely by healthcare professionals and should not be used by anyone without proper medical training. *** A phenotyping app that facilitates comprehensive and precise genetic evaluations. The Face2Gene app includes the following features: Clinic – Enhanced Patient Evaluation with Deep Phenotyping * Detect Dysmorphic Features & Reveal Related Traits * Discover Relevant Genetic Disorders * Includes London Medical Database (LMD) * Access to the Pediatrician View Forums - Collaborative Case Review for Diagnostic Dilemmas * Share cases in secure group forums * Comment on other cases and receive feedback on your cases * Community created solely for health care professionals Compliant with HIPAA and GDPR privacy rules and standards. Face2Gene is a search & reference tool provided for informational purposes and not intended to replace the clinician’s judgment or experience, nor should it be used to diagnose or treat medical conditions.
Screenshots
Verdict
The clearest difference is review sentiment: Ped(z) at 85% against Face2Gene's 17%. Ped(z) also leads on rating (4.0 vs 2.1) and update cadence (every 6 weeks vs every 3 months). Face2Gene's advantage is ratings volume (55 vs 3). On price, ads, in-app purchases and monetization model 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Ped(z) holds the better App Store score, 4.0 against 2.1. That said, the two scores are not equally well evidenced: Face2Gene has 55 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 85% of Ped(z)'s written reviews are positive against 17% of Face2Gene's.
Ped(z) ships an update every 6 weeks, Face2Gene every 3 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.
| Parameter | Ped(z) | Face2Gene |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (3 ratings) — better | 2.1 (55 ratings) |
| Positive reviews | 85.0% of reviews — better | 16.7% of reviews |
| Number of ratings | 3 | 55 — better |
| Update frequency | Every 6 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 17 MB | 43 MB |
| Age rating | 17+ | 17+ |
| Developer | Daniel Gräfe | FDNA |
Customer experience
Ped(z)
Face2Gene
In-app purchases
Ped(z)
No in-app purchases
Face2Gene
No in-app purchases









