Growing Degree Days Tracker vs GDDTracker

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/

GDD Tracker is the complete lawn care companion for homeowners and pros who want precision timing and organized records. Using your location and hyper-local weather data, the app calculates Growing Degree Days (GDD) so you know exactly when to apply pre-emergents, post-emergents, plant growth regulators, fertilizers, and more. But GDD Tracker goes beyond just tracking — it's a full-featured lawn management tool. GDD Tracking & Forecasting • Accurate GDD calculations based on your location and daily temps • Forecasted date to hit your target threshold • Clear progress with percentage, badge, and cumulative/daily charts • No-spray advisories for high wind, heat, or rain Application Log • Log every application — PGR, fertilizer, weed control, fungicide, insecticide, and more • Track products, rates, and notes for each entry • View season history with year-over-year comparisons • Export your records as CSV or PDF Smart Reminders • Get notified when it's time to reapply • Set reminders by GDD accumulation, calendar days, or soil temperature • Early warning alerts as you approach your threshold Built for Your Lawn • 50+ grass variety profiles — Bermuda, Zoysia, Fescue, Bluegrass, and more • Rate calculator for exact product amounts based on lawn size • Soil temperature estimates for pre-emergent and seeding timing • Manage multiple lawns with separate locations, settings, and color tags Everywhere You Need It • Widgets for your Home Screen • Apple Watch app for a quick glance • iCloud sync across all your devices • Optional device location or locked "home" coordinates Privacy-First No ads. No data selling. Location is used only to fetch local weather. iCloud sync is optional. How it works: 1. Add your lawn and choose your grass type or set a custom threshold. 2. Set your start date (e.g., last application). 3. Track daily progress as GDD accumulates. 4. Log applications and get notified when it's time to reapply. Perfect for: • Homeowners aiming for a healthier, weed-free lawn • DIY lawn enthusiasts who want precision timing • Lawn care pros who manage multiple properties and schedules Subscription Information GDD Tracker Pro is required to access all features. Two auto-renewing subscription options are available: • Monthly: $0.99/month • Annual: $9.99/year The annual plan includes a 7-day free trial. Payment will be charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your App Store account settings after purchase. Privacy Policy: https://gdd-tracker.com/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Download GDD Tracker and take the guesswork out of lawn care.