Growing Degree Days Tracker

Bernhard Hering · Weather

3.0 1 ratings Free

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Chart standing · US

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What changed · US

Listing changes AppTracker has observed for this app in this storefront — new versions, price moves, rating shifts, and store copy.

Oct 7, 2026
New version 1.18 → 1.19

You can now edit and delete saved locations. The selected location is remembered after relaunching. Weather caches are kept separate for each location, and loading errors and missing days are visible. Watch data transfer and purchase-status updates have been improved. The seasons wheel is clearly labelled as a calendar reference; flowering-start values are guidelines, not confirmed flowering.

Ratings breakdown · US

The star breakdown behind this app's rating in this storefront.

5★ 0% 0
4★ 0% 0
3★ 100% 1
2★ 0% 0
1★ 0% 0

In-app purchases · US

What this app sells inside itself, grouped by kind and priced for this storefront.

Subscriptions
bis zu drei Standorte $3.99/ year
Bis zu zehn Standorte $12.99/ year

Screenshots

About

How much warmth has accumulated at your location? Grassland Temperature Sum shows a temperature-based guide for beekeepers and gardeners who want to put plant development into context. Choose a location and follow its GTS since January 1. The calculation uses the mean of four daily OpenWeather temperature readings. Positive values count with a factor of 0.5 in January, 0.75 in February and 1.0 from March onwards. Growing Degree Days are also shown, using a base of 10°C/50°F. View the yearly curve and compare it with the previous year when those weather records are available. The bloom calendar lists plants by their stored GTS guidelines for flowering start. The seasons wheel shows a typical Central European calendar reference, not observed seasons at your location. Use the Apple Watch app to view the temperature sum, or the larger iPad view to browse the bloom calendar. You can edit or delete saved locations. Location access and subscriptions New users need a subscription. Annual plans support up to three or ten saved locations. People who bought the app before it became a free download retain access to one location. Available prices and subscription periods are shown in the app. Subscriptions renew automatically unless cancelled. These are calculated weather indicators, not measurements taken by the app or confirmed plant observations. Local conditions, species and sowing dates affect actual flowering. OpenWeather calculations can differ from station measurements. The app does not determine a binding fertilization or sowing date. Choose a location and follow its accumulated warmth. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

What's new · 1.19

You can now edit and delete saved locations. The selected location is remembered after relaunching. Weather caches are kept separate for each location, and loading errors and missing days are visible. Watch data transfer and purchase-status updates have been improved. The seasons wheel is clearly labelled as a calendar reference; flowering-start values are guidelines, not confirmed flowering.

Details

ReleasedMar 2025
UpdatedMar 2026
Version1.19
Size2.6 MB
RequiresiOS 18.0 or later
Age rating4+
LanguagesEnglish, French, German, Italian, Spanish
PriceFree
Categories WeatherReference
Bundle IDde.boernei.Gruenlandtemperatursumme