# N Price Calculator > Compares nitrogen fertilizer prices per pound of nitrogen. (iPhone/iPad app by UW-Madison Integrated Pest Management program.) - Source: https://appshunter.io/ios/app/n-price-calculator/id455090088 (this page in markdown: same URL + `.md`) - Developer: [UW-Madison Integrated Pest Management program](https://appshunter.io/developer/455090091) - Category: Utilities, Business - Price: Free - Rating: 4.00/5 from 1 App Store ratings · 2 written reviews indexed - Age rating: 4+ - Requires: iOS 16.0 · 1 MB - Languages: American English - Released: 2011-08-10 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/n-price-calculator/id455090088/reviews.md ## What is N Price Calculator? This app allows you to compare the price of various forms of nitrogen fertilizer products in terms of their price per pound of nitrogen. Nitrogen fertilizers such as anhydrous ammonia, urea, and urea ammonium nitrate (UAN) vary in their nitrogen content and are sold on a price per ton basis. This app converts the price of each fertilizer product from price per ton to price per pound of nitrogen -- allowing for "apples to apples" comparisons. The app then lets you add the price to a list of prices on a separate screen. In this manner, you build a price list to compare. By comparing the price per pound of nitrogen from multiple fertilizer sources on the N Price Calculator's Price List, the cheapest source of nitrogen can be identified. You can also email the price list directly from the app, allowing you to save and share your best deals. ## Key features - Compare fertilizer prices per pound of nitrogen - Convert price per ton to price per pound - Build and manage price lists - Identify cheapest nitrogen source - Email price lists for sharing ## Recent user reviews (2 of 2) All indexed reviews: https://appshunter.io/ios/app/n-price-calculator/id455090088/reviews.md ### 4/5 — Simple but... *2013-08-23* Simple conversion calculator. Very useful for comparing actual pounds of N price. Uses US ton measurements so Canadians using this product need to convert the ton pricing to metric tonnes before entry. Perhaps the developers could put out a metric version (converting price per mt to price per pound of N) for us North of the border types? ### 4/5 — Great calculator for comparing fertilizer costs *2011-09-21* Very handy app for comparing different Nitrogen prices and percentages. Being able to email the list is a great feature. ## Frequently asked questions about N Price Calculator ### How does N Price Calculator help compare fertilizers? N Price Calculator converts the price of various nitrogen fertilizers from price per ton to price per pound of nitrogen. This allows for direct, 'apples to apples' comparisons to find the most economical source. ### Can I save and share my fertilizer price comparisons with N Price Calculator? Yes, you can build a price list within the app to compare multiple fertilizer sources. The app also allows you to email your price list directly, enabling you to save and share your best deals. ### What types of nitrogen fertilizers can I compare with N Price Calculator? The app is designed to compare various forms of nitrogen fertilizer products, including anhydrous ammonia, urea, and urea ammonium nitrate (UAN), by their nitrogen content. ### Is N Price Calculator available on multiple devices? N Price Calculator is available for iPhone and iPad, offering flexibility for users on Apple's mobile platforms. ### How often is N Price Calculator updated? The app was last updated on August 15, 2023, with version 2.18. This indicates ongoing maintenance and potential improvements. ### What is the age rating for N Price Calculator? N Price Calculator has an age rating of 4+, making it suitable for a wide range of users. ### Does N Price Calculator have ads? No, N Price Calculator does not contain advertisements, providing an uninterrupted user experience. ### What is the user feedback on N Price Calculator? Based on the available data, N Price Calculator has a rating of 4.0 stars from 1 rating, suggesting a positive initial reception. ## Version history (last 5 releases) ### 2.18 — 2023-08-15 Minor bug fixes and some improvements. ### 2.17 — 2022-11-29 Update for iOS 16, UI improvements. ### 2.16 — 2020-07-24 -Update for newer IOS versions, Minor Bug fixes ### 2.1 — 2018-07-09 - Updated for iOS 11 - Fixed an issue causing crashes on iPhones ### 2.0.4 — 2017-02-16 - Price List is now saved to iCloud so it's available across all your devices. ## More apps by UW-Madison Integrated Pest Management program - [Corn N Rate Calculator](https://appshunter.io/ios/app/corn-n-rate-calculator/id455298473) - [IPM Toolkit](https://appshunter.io/ios/app/ipm-toolkit/id504685615) - [Crop Calculators](https://appshunter.io/ios/app/crop-calculators/id692861569) - [NPK Credits](https://appshunter.io/ios/app/npk-credits/id954888966) - [Bean Cam](https://appshunter.io/ios/app/bean-cam/id1072670653) All apps by UW-Madison Integrated Pest Management program: https://appshunter.io/developer/455090091 --- *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.*