# Growing Degree Days Calculator — GDD Calculator

> Calculate growing degree days for crop management using zip code and temperature data. (iPhone/iPad app by Oklahoma State University.)

- Source: https://appshunter.io/ios/app/growing-degree-days-calculator/id1177131484 (this page in markdown: same URL + `.md`)
- Developer: [Oklahoma State University](https://appshunter.io/developer/393442180)
- Category: Utilities, Education
- Price: Free
- Rating: 1.00/5 from 3 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.2 · 6 MB
- Languages: English
- Released: 2016-11-24
- Data updated: 2026-06-11
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/growing-degree-days-calculator/id1177131484/reviews.md

## What is Growing Degree Days Calculator?

This application is designed for winter wheat and winter canola producers outside of Oklahoma to use to calculate the number of growing days since the crop was planted (GDD>0). This calculation can be used for Sensor Based Nitrogen Management strategies that utilize the GreenSeeker Sensor and N-Rich Strip. Also included in this application is a cumulative Growing Degree Day (GDD) calculator. Crops included in this calculator are: Wheat, Grass hay, Alfalfa, Corn, Cotton, Peanut, Sorghum, and Soybean. The application uses user zip code to identify where temperature data is collected from.

## Key features

- Growing Degree Day calculation
- Crop-specific GDD tracking
- Temperature data retrieval via zip code
- Supports winter wheat and canola
- Cumulative GDD calculator
- Sensor Based Nitrogen Management support

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/growing-degree-days-calculator/id1177131484/reviews.md

### 1/5 — App not functional

*2025-04-04*

This is a great concept. You should fix the app

## Frequently asked questions about Growing Degree Days Calculator

### What is the Growing Degree Days Calculator used for?

The Growing Degree Days Calculator is used by agricultural producers, particularly for winter wheat and winter canola, to calculate the number of growing days since planting. This data is valuable for Sensor Based Nitrogen Management strategies.

### What crops does the Growing Degree Days Calculator support?

The calculator supports a variety of crops including Wheat, Grass hay, Alfalfa, Corn, Cotton, Peanut, Sorghum, and Soybean. It provides cumulative Growing Degree Day (GDD) calculations for each.

### How does the Growing Degree Days Calculator determine temperature data?

The application uses your zip code to identify the nearest location from which temperature data is collected. This ensures localized and relevant weather information for your calculations.

### Is the Growing Degree Days Calculator available on Android devices?

Based on the provided information, the Growing Degree Days Calculator is supported on iPhone and iPod devices. Compatibility with Android is not specified.

### How often is the Growing Degree Days Calculator updated?

The latest version of the Growing Degree Days Calculator is 1.1.0, which was last updated on June 23, 2020. This indicates it has not received updates in over three years.

### What is the user rating for the Growing Degree Days Calculator?

The Growing Degree Days Calculator has a rating of 1.0 stars based on 3 ratings. This suggests a very low level of user satisfaction.

### Does the Growing Degree Days Calculator have ads?

No, the Growing Degree Days Calculator does not contain advertisements. The 'hasAds' flag is set to false.

### What is the age rating for the Growing Degree Days Calculator?

The Growing Degree Days Calculator has an age rating of 4+. This means it is suitable for users aged 4 and older.

## Version history (last 2 releases)

### 1.1.0 — 2020-06-23

Releasing as new GDD Calculator IOS app.

### 1.0.1 — 2016-11-24

No release notes.

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All apps by Oklahoma State University: https://appshunter.io/developer/393442180

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*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 2026-06-11.*