GrowCalc
All-in-One Lawn Care Tool
About
This app is a comprehensive lawn care toolkit that uses precision math and live climate data to help users grow healthier lawns. It offers tools for calculating fertilizer rates, logging applications, diagnosing issues with AI, and tracking weather patterns. Manage multiple lawn zones and access global pest pressure data.
What's New in GrowCalc
2.1.0
August 10, 2026
GrowCalc 2.1.0 — now truly worldwide • Weather, soil temp & growing seasons work anywhere on Earth (no more US ZIP required) • New Renovation Planner with 6 templates and cascading date shifts • Products, Logs & Service are now FREE for every user • Product Library gets AI auto-fill for NPK, active ingredients & rates • New Equipment & Warranty Keeper for receipts and expiry countdowns • Bio Watch unifies pest, fungus & disease risk in one hub • Calendar & Weather redesigned • Dozens of fixes and polish
MoreSubscription plans
GrowCalc Pro
Professional NPK Calculator
FAQ
What is GrowCalc?
GrowCalc is a comprehensive agronomic toolkit designed to assist with all aspects of lawn care. It provides precision calculations, AI-powered diagnostics, and real-time environmental data to help users maintain healthier lawns.
Does GrowCalc have ads?
No, GrowCalc does not contain advertisements. It is a completely ad-free application, allowing for an uninterrupted user experience.
What are the subscription options for GrowCalc?
GrowCalc offers a Pro subscription with two plans: a monthly option for $4.99 and an annual option for $49.99. Both plans include a 7-day free trial.
How does GrowCalc's AI Photo Diagnosis work?
You can take a photo of any weed, disease, insect damage, or nutrient deficiency on your lawn. The app's advanced AI, trained on turf science, will instantly identify the issue and provide a step-by-step treatment plan.
Can GrowCalc help me track my lawn's nutrient levels?
Yes, GrowCalc features a Precision NPK Calculator that allows you to determine exact N-P-K rates for any product. It also tracks season totals per zone and cumulative NPK when you log your applications.
What kind of weather information does GrowCalc provide?
GrowCalc offers hyperlocal forecasts, hourly conditions, and soil data based on your GPS location. It also provides color-coded Spray Windows indicating the best times for application based on wind, rain, and temperature.
Is GrowCalc suitable for managing multiple lawn areas?
Absolutely. GrowCalc supports multi-zone property management, allowing you to track front, back, side, and specialty areas independently. This is ideal for managing multiple lawns or different sections of a large property.
How often is GrowCalc updated?
The latest version of GrowCalc is 2.0.0, which was last updated on August 5, 2026. Updates typically include new features, bug fixes, and performance improvements.
