# Paley Growth > Medical app for predicting height and limb length using the Paley Multiplier method. (iPhone/iPad app by Eric Townsend.) - Source: https://appshunter.io/ios/app/paley-growth/id435195238 (this page in markdown: same URL + `.md`) - Developer: [Eric Townsend](https://appshunter.io/developer/435195241) - Category: Medical, Utilities - Price: Free - Rating: 3.70/5 from 3 App Store ratings · 5 written reviews indexed - Age rating: 12+ - Requires: iOS 9.0 · 27 MB - Languages: American English - Released: 2011-05-06 - Data updated: 2026-06-25 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/paley-growth/id435195238/reviews.md ## What is Paley Growth? Prediction of height, limb length and limb length discrepancy are all done using the Paley Multiplier method. Instead of using the Multiplier tables, a calculator and formulae this app allows you to enter patient age, sex and length parameters in order to calculate the prediction. Using this app you can predict limb length and limb length discrepancy at maturity for congenital and developmental discrepancies of the lower or upper limbs. It allows calculation of the age of epiphysiodesis for a desired correction and growth remaining. Standing and sitting height at maturity in normals and in achondroplasia can also be predicted. Foot length and fetal bone and limb length discrepancy can also be predicted. The multiplier growth charts and deformity parameters are also included for reference. The multiplier method is as or more accurate than other growth prediction methods and validation studies are published and referenced in the bibliography. - Dr. Dror Paley, M.D. ## Key features - Paley Multiplier method for predictions - Predicts limb length at maturity - Calculates epiphysiodesis age - Predicts standing and sitting height - Includes foot length and fetal bone predictions - References multiplier growth charts ## Recent user reviews (5 of 5) All indexed reviews: https://appshunter.io/ios/app/paley-growth/id435195238/reviews.md ### 4/5 — Good app *2016-11-14* Congrats for this app. Please, check the achondroplasia algorithms. Final height prediction curves for females are being shown on male graphs. ### 5/5 — Fantastic App *2016-05-14* Thank you very much for this great application. I was totally lost when I knew my son has LLD. This App helped me to know all projections I needed With all respect ### 5/5 — "Paley" Deformity App! *2011-12-11, version 1.35* Excellent App for anyone doing pediatric orthopedics! ### 5/5 — Great app to have! *2011-08-16* Dr. Paley kept saying that his fellows carried the paper chart all the time in their wallet, which was true, now it's time for every Jedi and new J.I.T.s to download this app to their iLightsaber. SM ### 5/5 — Multiplier app *2011-05-08* This app is extremely useful in the office. It allows so many different prediction possibilities including LLD, height, epiphysiodesis, limb , etc.My patients were impressed that I could calculate their discrepancy in seconds on my iPhone in front of them. Great achievement Dr. Paley. thank you. ## Frequently asked questions about Paley Growth ### What is Paley Growth used for? Paley Growth is a medical app that uses the Paley Multiplier method to predict a patient's height and limb length at maturity. It is designed to help calculate predictions for congenital and developmental discrepancies of the limbs. ### How accurate is Paley Growth? The Paley Multiplier method used by the app is considered as or more accurate than other growth prediction methods. Validation studies are published and referenced in the app's bibliography. ### What types of predictions can Paley Growth make? Paley Growth can predict limb length and discrepancy at maturity, the age of epiphysiodesis for desired correction, standing and sitting height at maturity for normals and achondroplasia, and foot length and fetal bone length. ### Is Paley Growth available on Android? Based on the provided data, Paley Growth is available on iPhone, iPad, and iPod. Information regarding Android availability is not specified. ### How often is Paley Growth updated? The latest version of Paley Growth is 3.0, which was last updated on June 22, 2019. This indicates infrequent updates in recent years. ### What is the age rating for Paley Growth? Paley Growth has an age rating of 12+, making it suitable for users aged 12 and older. ### Does Paley Growth have ads? No, Paley Growth does not contain advertisements. The app is free to download and use without any ad interruptions. ### What is the user rating for Paley Growth? Paley Growth has a user rating of 3.7 stars based on 3 ratings. This suggests a mixed reception from its limited user base. ## Version history (last 5 releases) ### 3.0 — 2019-06-22 Added: Congenital LLD and Growth Remaining sections now have a list of the predicted discrepancy/growth remaining at each age. Timing of epiphysiodesis can be done in both skeletal age and chronological age. The ability to email the results for review and comparison in the future. Fixed: Achondroplasia shows the correct graph for girls ### 2.1 — 2015-12-16 Fixed minor bugs ### 2.0 — 2015-12-09 Optimized for new devices and iOS Updated UI New features including displaying results for multiple ages and displaying results on a chart if available Bug fixes ### 1.35 — 2011-10-25 - Fixed bug where tapping on the "Congenital LLD" button on iPad would crash the app. - Fixed bug with "Congenital LLD" app using slightly wrong multipliers. New features in next update: - New mini-apps for predicting lengths at any age for height, congenital lld, achondroplasia, and sitting height. ### 1.3 — 2011-10-05 - New mini-app to predict Hemi-Epiphysiodesis. - New mini-app to predict bone length at any age. - User interface tweaks to make it a little more intuitive. - New icon. User Guide will be included in a later update. ## Apps similar to Paley Growth | App | Rating | Price | Category | | --- | --- | --- | --- | | [Multiplier](https://appshunter.io/ios/app/multiplier/id460335161) | 4.6 (24) | Free | Medical | | [What's the Skeletal Maturity?](https://appshunter.io/ios/app/whats-the-skeletal-maturity/id1564285837) | 5.0 (10) | Free | Medical | | [HipScreen](https://appshunter.io/ios/app/hipscreen/id1071640939) | 5.0 (2) | Free | Medical | | [Paley Growth Multipliers](https://appshunter.io/ios/app/paley-growth-multipliers/id6461414973) | — | Free | Medical | | [Orthopedic Approaches Lite](https://appshunter.io/ios/app/orthopedic-approaches-lite/id6443950790) | 5.0 (1) | Free | Medical | | [Bone Ninja Sensei](https://appshunter.io/ios/app/bone-ninja-sensei/id6450483301) | 4.5 (2) | Free | Medical | --- *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 2026-06-25.*