# TurfTherapy — Fertilizer Calculator > Calculates granular and liquid fertilizer application rates for lawn care. (iPhone/iPad app by ROBERT PALMER.) - Source: https://appshunter.io/ios/app/turftherapy/id1494998083 (this page in markdown: same URL + `.md`) - Developer: [ROBERT PALMER](https://appshunter.io/developer/1494998082) - Category: Utilities, Education - Price: $0.99 - Rating: 4.65/5 from 26 App Store ratings · 8 written reviews indexed - Age rating: 4+ - Requires: iOS 9.0 · 14 MB - Languages: English - Released: 2020-01-18 - Data updated: 2026-06-10 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/turftherapy/id1494998083/reviews.md ## What is TurfTherapy? With the Turf Therapy App you will be able to calculate both the Granular and Liquid Fertilizer Application Rates of Nitrogen (N), Phosphorous (P), and Potassium (K) at a rate of "lbs per 1,000 sq ft" with ease. Say good bye to the long, drawn out, mind numbing math! It was my mission to streamline calculating fertilizer application rates, and to make it a pleasant user friendly experience. The Turf Therapy App can be used by Lawn care enthusiasts looking to advance their lawn care skills, and Small business owners looking for an easy way to train staff or calculate quotes. I hope you enjoy and don't forget to rate the app please! Send feedback for desired new features or technical difficulties. *Disclaimer Turf Therapy does NOT accept responsibility for any loss which may occur from reliance on the software or materials published in this application. ## Key features - Calculate granular fertilizer rates - Calculate liquid fertilizer rates - Nitrogen, Phosphorus, Potassium calculations - Lbs per 1,000 sq ft - Streamlined user experience - Training tool for staff ## Recent user reviews (8 of 8) All indexed reviews: https://appshunter.io/ios/app/turftherapy/id1494998083/reviews.md ### 4/5 — Fantastic app but needs a metric option *2024-08-06, version 2.7* Fanatic and handy app but needs a metric option for those of us that use kg/100sqm and mL/100sqm ### 5/5 — Professional Must Have *2021-02-11* Great app easy to use and calculator rates. I am a newly licensed fertilizer applicator and this is great. I use it almost daily! ### 5/5 — Great app *2020-11-29* Robert made this for people like me who hate doing math. It’s simple and easy to use. And I can always reach out to him if I have a question. Great job Robert ### 4/5 — Metric Please *2020-05-26, version 2.4* Love the app buy could you please add metric units? ### 5/5 — Useful *2020-04-21* Totally useful, recommended ### 5/5 — Extremely Useful *2020-02-12* This app makes applications easy and more accurate then the common guesstimate. Well thought out app and you won’t be disappointed. ### 5/5 — Easy & Convenient *2020-01-19* If you’re about to “Throw’er Down” this is the app to help you. It’s easy to use and convenient. Well done. ### 5/5 — Very useful *2020-01-19* Finally, an app that lets me calculate how much nitrogen I’m putting down without having to do the calculations by hand. Thank you! ## Frequently asked questions about TurfTherapy ### What is TurfTherapy? TurfTherapy is a mobile application designed to help users calculate granular and liquid fertilizer application rates for Nitrogen, Phosphorus, and Potassium. It simplifies complex mathematical calculations for lawn care. ### How much does TurfTherapy cost? TurfTherapy is a paid application and costs $0.99. This one-time purchase grants access to all its features for calculating fertilizer application rates. ### What devices does TurfTherapy support? TurfTherapy is available for iPhone and iPod devices. It is designed for iOS users looking for a convenient way to manage their lawn fertilization. ### What is the age rating for TurfTherapy? TurfTherapy has an age rating of 4+. This indicates it is suitable for users of all ages, with no mature content present. ### How often is TurfTherapy updated? The latest version of TurfTherapy is 2.7, last updated on September 23, 2020. Users can expect updates to improve functionality and address any technical issues. ### Does TurfTherapy have ads? No, TurfTherapy does not contain advertisements. As a paid application, it offers an ad-free experience for users focused on calculating fertilizer rates. ### What are the main benefits of using TurfTherapy? The primary benefit of TurfTherapy is its ability to eliminate tedious math for fertilizer calculations, providing a user-friendly experience. It helps users advance their lawn care skills or efficiently train staff. ### Can TurfTherapy be used for commercial purposes? Yes, TurfTherapy is suitable for small business owners. It can be used to easily calculate quotes and train staff on fertilizer application rates. ## Version history (last 5 releases) ### 2.7 — 2020-09-23 change description string in main ### 2.6 — 2020-08-31 Fix of the float input. ### 2.5 — 2020-07-10 Tips and more feature remove. ### 2.4 — 2020-05-22 Bug fix of the input validation. ### 2.3 — 2020-05-19 Calculator Application Add feature fix. ## Apps similar to TurfTherapy | App | Rating | Price | Category | | --- | --- | --- | --- | | [Fertilizer Calc App](https://appshunter.io/ios/app/fertilizer-calc-app/id1450299266) | 1.0 (1) | Free | Utilities | | [Mobile Weed Manual](https://appshunter.io/ios/app/mobile-weed-manual/id1572882654) | 4.6 (10) | Free | Utilities | | [TexasET](https://appshunter.io/ios/app/texaset/id6443335772) | 3.0 (2) | Free | Utilities | | [Toro Handheld (Lynx 7.0)](https://appshunter.io/ios/app/toro-handheld-lynx-70/id6447524856) | — | Free | Utilities | | [Lynx Handheld](https://appshunter.io/ios/app/lynx-handheld/id1025987165) | — | Free | Utilities | | [NPKalc - Fertilizer Calculator](https://appshunter.io/ios/app/npkalc-fertilizer-calculator/id6497334549) | 4.1 (7) | Free | Utilities | --- *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.*