GDU Tracker Lite

GDU Calculator Lite — Track growing degree units for a single field, right from your phone. Set your planting date, pick your location, and GDU Calc pulls real weather data automatically to show your cumulative heat accumulation alongside a 7-day forecast.

Supports corn, soybeans, wheat, and more using simple, modified, or capped calculation methods. Includes a visual GDU progress chart and crop stage indicators so you always know where you stand in the season.

Includes:

Single-field GDU tracking with automatic weather fetch

Built-in crop presets with growth stage milestones

Simple, modified, and capped calculation methods

Cumulative GDU chart with forecast

Works offline after first load

Upgrade to the full version for:

Unlimited fields

Field operation logging (planting, spraying, harvest)

Ambient Weather Network (AWN) station integration

Custom crop varieties with your own base temps and stages