GDDTracker vs SoilIQ

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.

Stop Guessing. Plant by Soil. SoilIQ™ tells you when to seed, plant, water, mow, protect, or wait, using the two numbers that actually decide what happens in your ground. Air temperature tells you how the day feels. Soil temperature and soil moisture decide whether seed germinates, whether roots grow, whether a pre-emergent barrier holds, and whether today's watering helps or hurts. KNOW MY LAWN Build your Lawn Profile with grass type, sun exposure, irrigation, soil type, drainage, foot traffic, current condition, and a custom lawn name. Today's Lawn Read combines your Lawn Profile with soil data and forecast trends into one recommendation on the Today tab. Tap it to see why it triggered and what to do next. SOIL AWARE WATERING The same moisture reading means opposite things in sand and in clay. SoilIQ measures root zone moisture against your own soil's wilting point and field capacity, so dry means dry for your ground. Forecast rain is weighed against evapotranspiration and weighted by probability, so a light chance is not banked as a soaking. When the root zone is holding all it can, SoilIQ tells you to wait. SOILIQ CALCULATOR Plan what to buy. Measure what to apply. - Product Rate Calculator - Nitrogen Calculator - Grass Seed Calculator - Mulch, Soil & Sand Calculator Save calculations to your Journal, share image cards, or log them as lawn activity. LAWNIQ LawnIQ™ is a soil-powered lawn advisor built into SoilIQ. It turns soil temperature, soil moisture, forecast trends, your lawn profile, and recent activity into clear guidance. Use LawnIQ to understand: - When to mow - When to water, and when to wait - When to seed or overseed - When heat stress may become a concern - When rain may change your plan - When pre-emergent timing windows may be approaching LAWN ACTIVITY & FIELD JOURNAL Log mowing, watering, overseeding, fertilizing, aerating, pre-emergent, rain, field notes, photos, and seasonal observations. SOIL TEMPERATURE AT MULTIPLE DEPTHS Readings at 2, 6 and 21 inches, calculated to exactly those depths. Seeds germinate near the surface. Roots live below. 14-DAY SOIL FORECASTS Soil temperature trends for seeding, planting, watering, and frost protection. HISTORICAL GDD TRACKING Tracked crop Growing Degree Days calculate from the actual planting date using historical weather data, not just the forecast. PLANTAI FOR 160 CROPS PlantAI™ asks two questions before calling a crop ready: is the soil warm enough today, and is enough season left to finish before frost. Home garden crops come first, field crops in their own section. Crops started from seed get a verdict. For the rest, SoilIQ says so plainly rather than inventing an answer. SAVED LOCATIONS & PROBE CALIBRATION Track conditions across your lawn, garden, plot, farm field, or client site. Calibrate readings against your own probe, per location and depth. APPLE WATCH, SIRI, WIDGETS & LIVE ACTIVITIES Check soil temperature from your wrist, ask Siri without opening the app, and pin readings to your Home Screen, Lock Screen, and Live Activities. PRIVACY-FIRST No account required. Your location is used only to fetch soil and weather data. SoilIQ does not sell your data, and core features work offline from cached readings. Export your full history at any time, because your records are yours. SOILIQ PRO Upgrade to unlock: - SoilIQ Calculator - LawnIQ lawn guidance - Lawn Profile and Today's Lawn Read - PlantAI guidance for 160 crops - 14-day soil forecasts - Historical GDD tracking - Soil aware watering guidance - Field Journal and Lawn Activity tracking - Saved locations and probe calibration - Smart alerts and reminders - Apple Watch soil and LawnIQ insights Feedback: hello@soiliq.app SUBSCRIPTION TERMS Free features stay free forever. SoilIQ Pro auto-renews monthly or annually and can be canceled anytime in Apple ID settings. LEGAL Terms: https://www.soiliq.app/terms Privacy: https://www.soiliq.app/privacy