# Cardio Z > Pediatric cardiology Z-score and centile calculator for clinical use. (iPhone/iPad app by UBQO Limited.) - Source: https://appshunter.io/ios/app/cardio-z/id494844989 (this page in markdown: same URL + `.md`) - Developer: [UBQO Limited](https://appshunter.io/developer/415663348) - Category: Medical, Productivity - Price: $6.99 - Rating: 4.00/5 from 3 App Store ratings · 9 written reviews indexed - Age rating: 4+ - Requires: iOS 10.0 · 15 MB - Languages: American English - Released: 2012-05-31 - Data updated: 2026-06-10 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/cardio-z/id494844989/reviews.md ## What is Cardio Z? Instant Z-Scores For All The Paediatric Cardiology Parameters You Review Everyday. Cardio Z has been developed by the experienced Paediatric Cardiology team at Evelina Children's Hospital, London, UK in collaboration with the technology company UBQO. The application makes it easy to calculate Z-scores and centiles for the many cardiac and paediatric measurements that are made in normal clinical practice. Cardio Z distils a wealth of clinical research parameters into a single accessible format. Z–scores and centiles are a means of expressing how far a measurement is above (positive Z-score) or below (negative Z-score) the average for the size or age of a patient. They are particularly important in assessing and monitoring growing patients, from fetal life though to adulthood. Health professionals need to be able to access the normal ranges for cardiac parameters at every age and size, and cross-checking of measurements can be time-consuming and inconvenient. Cardio Z will prove invaluable for both clinicians working directly in Paediatric Cardiology, and those who work in other fields of Paediatrics. Cardio Z allows users to access Z-scores without the need for an internet connection, or the requirement to input the same data in multiple calculators. Users can define their own settings so that they can be sure that their use of z-scores is consistent over time, whilst still allowing flexibility for the experienced clinician. Comprehensive guidance is available ensuring that measurements are consistent with those of the original research, allowing valid comparisons. Cardio-Z creates a summary of all z-scores for each patient, which can then be saved, e-mailed or printed. Simple, reliable and time-saving. FULL LIST OF FEATURES: - Cardio Z allows calculation of z-scores of: - Height, weight, BMI and head circumference - Clinic blood pressure, with calculation of a user-defined 'target centile' blood pressure - Echocardiographic measurements of most cardiac structures, including valves, chambers, vessels and coronary arteries - Fetal echocardiographic measurements, using gestational age, femur length or biparietal diameter as size reference - M-mode echocardiography, including TAPSE - Pulsed wave velocities, including E/E' ratio and E/A ratio - Tissue Doppler velocities and time intervals. Including Isovolumetric Contraction Time (IVCT), Isovolumetric Relaxation Time (IVRT), Ejection Time and Myocardial Performance Index - Discriminant scores for neonatal aortic stenosis with borderline left ventricle - ECG parameters (2nd and 98th centiles) and corrected QT interval calculation EXTRA FEATURES: - Guidance tips for measurements, including diagrams and notes of the methods of the original researchers - Centiles, as well as z-scores, displayed for all parameters - No need to re-enter height and weight: baseline data only needs to be entered once - Generation of a .pdf summary which can be saved, e-mailed or printed - Saved patient Z-score summaries can be accessed and edited at a later date - Short-cut keys for frequently used parameters - Body surface area calculator can be defined to use the same algorithms as the original research - Cardio Z reduces the inconvenience of making Z-score calculations, and improves the correct application of this important clinical tool. The App is not a substitute for clinical judgement or institutional policies, thus it should complement and not replace normal procedures for making clinical decisions. We hope you enjoy using Cardio Z! ## Key features - Instant Z-score and centile calculations - Supports numerous cardiac and pediatric measurements - Offline functionality - Patient data saving and sharing - Customizable user settings - Guidance tips for measurements ## Recent user reviews (9 of 9) All indexed reviews: https://appshunter.io/ios/app/cardio-z/id494844989/reviews.md ### 3/5 — Boston? *2021-02-10* Why is there no ability to calculate Boston z-scores? ### 5/5 — Great app! *2018-11-18, version 3.0* Fantastic adjunct to clinical practice and research ### 2/5 — Lacking complete ECG normal values *2016-09-06* I was excited to download this app, mainly for the ECG normal values (I use my own institution's echo Z scores). However I was disappointed to see that normal values for R and S voltages are not included in this app. These values are just as important as other intervals/axis and much harder to remember. The app becomes useless if I need to go to another source for every single ECG anyways... This absolutely needs to be updated! ### 5/5 — Excellent *2013-07-27* Really robust, well designed app. For the information provided, the price is very fair. ### 5/5 — Well worth buying! *2012-09-04* User friendly, Comprehensive, and Well Designed tool for Paediatric Cardiology Echo Assessment. ### 4/5 — Useful app *2012-08-20* As a pediatric cardiologist, I find this application quite helpful. It delivers as advertised. ### 5/5 — Fantastic *2012-08-15, version 1.2* Very useful reliable app, use it everyday. Makes clinic much quicker! ### 5/5 — Really useful *2012-06-30, version 1.2* Very easy to use and completely reliable so far. Loads more parameters than parameter z. Love the facility to create a summary of all the results to print off for the notes! ### 5/5 — Impressive *2012-06-27, version 1.2* Impressive app with great features and referencing. Very happy with this purchase. ## Frequently asked questions about Cardio Z ### What is Cardio Z used for? Cardio Z is a medical application designed to instantly calculate Z-scores and centiles for various pediatric cardiology and general pediatric measurements. It helps healthcare professionals assess and monitor patient growth parameters efficiently. ### Who developed Cardio Z? Cardio Z was developed by an experienced Paediatric Cardiology team at Evelina Children's Hospital, London, UK, in collaboration with the technology company UBQO. ### Does Cardio Z require an internet connection? No, Cardio Z allows users to access Z-scores and perform calculations without the need for an internet connection, making it convenient for use in various clinical settings. ### What types of measurements can Cardio Z calculate Z-scores for? Cardio Z can calculate Z-scores for a wide range of measurements including height, weight, BMI, head circumference, clinic blood pressure, various echocardiographic measurements of cardiac structures, fetal echocardiographic measurements, M-mode echocardiography, pulsed wave velocities, and ECG parameters. ### Can I save patient data with Cardio Z? Yes, Cardio Z creates a summary of all Z-scores for each patient, which can then be saved, e-mailed, or printed. This feature helps in tracking patient progress over time. ### What is the price of Cardio Z? Cardio Z is a paid application priced at $6.99. ### On which devices can I use Cardio Z? Cardio Z is available for iPhone, iPad, and iPod devices. ### How often is Cardio Z updated? The latest version of Cardio Z is 3.0, and it was last updated on September 26, 2017. While the app has not been updated recently, its core functionality remains valuable for its intended users. ## Version history (last 4 releases) ### 3.0 — 2017-09-26 This app has been updated by Apple to display the Apple Watch app icon. iOS 11 compatibility UI Improvements ### 2.0 — 2014-03-10 iOS 7 compatibility UI Layout improvements ### 1.2 — 2012-06-27 PDF Generation improvements ### 1.0 — 2012-05-01 No release notes. ## More apps by UBQO Limited - [Image Release](https://appshunter.io/ios/app/image-release/id480966266) - [Infections](https://appshunter.io/ios/app/infections/id704610897) - [Paediatric Formulary](https://appshunter.io/ios/app/paediatric-formulary/id994112478) - [QGenome](https://appshunter.io/ios/app/qgenome/id999802455) - [Clinibee](https://appshunter.io/ios/app/clinibee/id1463572941) All apps by UBQO Limited: https://appshunter.io/developer/415663348 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*