# GrowCalc — All-in-One Lawn Care Tool

> Precision agronomic toolkit for lawn care, featuring NPK calculation, AI diagnosis, and weather tracking. (iPhone/iPad app by REINALDO CAMACHO.)

- Source: https://appshunter.io/ios/app/growcalc/id6786804897 (this page in markdown: same URL + `.md`)
- Developer: [REINALDO CAMACHO](https://appshunter.io/developer/6786804899)
- Category: Utilities
- Price: Free with in-app purchases
- Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 12+
- Requires: iOS 15.1 · 53 MB
- Languages: American English
- Released: 2026-07-14
- Data updated: 2026-09-04
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/growcalc/id6786804897/reviews.md

## What is GrowCalc?

GrowCalc — Precision Lawn Care in Your Pocket

GrowCalc is the complete agronomic toolkit for lawn enthusiasts, homeowners, and turf professionals. Built on precision math and backed by live climate data, it removes the guesswork from every application so you can grow a healthier lawn with confidence — anywhere in the world.

PRECISION NPK CALCULATOR: Calculate exact N-P-K rates per 1,000 sq ft (or 100 m²) for any product. Full support for granular, liquid, and ready-to-spray (RTS) formulations, with density, coverage, and dilution math handled automatically. Tank-mix multiple products in a single "cocktail" and see nutrient totals for the entire mix at a glance.

SMART APPLICATION LOG: Log every fertilizer, herbicide, fungicide, insecticide, and plant growth regulator applied to your property. Track season totals per zone, monitor cumulative NPK, and export complete records for review or record-keeping.

AI PHOTO DIAGNOSIS: Snap a photo of any weed, disease, insect damage, or nutrient deficiency and receive an instant identification with a step-by-step treatment plan — powered by advanced AI trained on turf science.

AI LAWN ASSISTANT: Ask any lawn-care question and get expert-grade answers on demand. From product substitutions to timing questions, your personal agronomy advisor is always one tap away.

LIVE WEATHER & SPRAY WINDOWS: Hyperlocal forecasts, hourly conditions, and soil data driven by your GPS location. Color-coded Spray Windows show whether the next seven days are Excellent, Good, Fair, or Poor for application — with clear "why" reasoning based on wind, rain, and temperature.

GROWING DEGREE DAYS (GDD): Track live Growing Degree Days for your climate to time PGR reapplications, fungicide intervals, pre-emergent windows, and pest activity. Automatic reminders fire when it's time to reapply.

BIO WATCH — GLOBAL PEST & DISEASE PRESSURE: Real-time pest, fungus, and disease pressure indicators for any location worldwide. Stay ahead of pressure spikes before they cost you a summer.

SEASONAL AGRONOMIC CALENDARS: Month-by-month task schedules tuned to warm-season and cool-season grasses — covering fertilization, aeration, dethatching, pre-emergent timing, seeding, and more.

PRODUCT LIBRARY & DASHBOARD: Save your go-to products with full labeled specs (NPK, active ingredients, coverage, application rates). Season-at-a-glance dashboard summarizes nutrients delivered, treatments logged, and upcoming reminders across every zone.

WARRANTY & EQUIPMENT KEEPER: Store equipment receipts, maintenance history, and warranty expiration dates in one secure vault — with expiry countdowns so you never miss a claim window.

MULTI-ZONE PROPERTY MANAGEMENT: Track front, back, side, and specialty areas independently. Perfect for enthusiasts, property owners, and pros managing multiple lawns.

METRIC & IMPERIAL, WORLDWIDE: Every calculation, weather feed, and biological tracker works globally. Full dynamic unit conversion throughout the app — no matter where you live or what units you prefer.

GO PRO Unlock GrowCalc Pro for full GDD projections, multi-zone tracking, season archives with CSV export, unlimited AI diagnoses, and priority feature access.

Whether you're chasing that stripe-worthy backyard, managing a private estate, or maintaining multiple properties, GrowCalc puts professional-grade turf science in your pocket.

Download GrowCalc and grow smarter today.

Privacy Policy: https://growcalcs.com/privacy | Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Precision NPK calculator
- Smart application logging
- AI photo diagnosis for weeds and diseases
- AI lawn assistant for expert advice
- Live weather and spray window forecasts
- Growing Degree Days (GDD) tracking
- Global pest and disease pressure monitoring

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| GrowCalc Pro | $4.99 | per month |
| GrowCalc Pro | $49.99 | per year |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/growcalc/id6786804897/reviews.md

### 5/5 — Very good

*2026-08-19*

This app is great, súper useful

## Frequently asked questions about GrowCalc

### 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.

## Version history (last 5 releases)

### 2.2.1 — 2026-08-29

- Ready-to-Spray products now show the nutrients and micronutrients they deliver per 1,000 sq ft (100 m²), exactly like granular and liquid products.
- Bottle size now lives inside the Ready-to-Spray section next to coverage, so the auto application rate and delivered nutrients always have what they need — and the card tells you if either one is missing.
- Fixed a blank Bag size / Bottle size panel that could appear on product cards on Android.
- Fixed duplicate push notifications — when several accounts share one phone, only the account you are signed into now sends your daily digest.
- Fixed digests arriving in the middle of the night — your local timezone is now always used, so the 7 AM digest really is 7 AM.
- Fixed notification titles showing stray characters instead of an apostrophe.
- Notifications now speak your units — metric users get °C, km/h and mm instead of °F, mph and inches.

### 2.2.0 — 2026-08-19

- New Arbor section — a full tree & shrub care hub: add trees from a curated species library or identify them from a photo with AI, then track watering, feeding, pruning, soil pH and herbicide applications per tree.
- AI species profiles — if your tree isn't in the library yet, GrowCalc generates a complete care profile for it (sun, water, feeding windows, pest and disease watch-outs) and marks it with an AI badge.
- Log-aware fertilizer timelines — your next feed date now recalculates from what you actually logged, using a 30-day absorption window, instead of a fixed calendar.
- Tree growth photo journal — snap dated photos with a weather stamp, add notes, and watch your tree fill in over the seasons.
- Tree reminders — get nudged when a feed is due or overdue, including for AI-generated species.
- Much faster Tree hub — photos are now served as optimized thumbnails, cutting tree screens from several seconds to near-instant, and adding a photo is dramatically quicker.
- Faster GDD, Logs, Products and Tree screens — data now loads in a single parallel pass and returning to a tab refreshes quietly instead of flashing a loading spinner.
- Bio Watch reliability fix — the disease pressure card no longer intermittently fails to load.
- Product units are now self-healing — if a saved product ever picked up a bad value when switching between imperial and metric (like an 'apply under' temperature reading in the hundreds), GrowCalc detects and repairs it automatically.
- Keyboard experience overhauled again — Save / Cancel / Add buttons now glide with the keyboard instead of bouncing or leaving a gap, and they always clear Android's 3-button navigation bar.
- Scrolling inside log forms no longer closes and reopens the keyboard on every touch.
- AI tools polished — Diagnose, Soil Test, Grass ID and Tank Mix now share one consistent sticky action bar that follows the keyboard, and the last item in a list is never hidden behind it.
- Photo journal notes — the note field now lifts above the keyboard in both the lawn and tree journals.
- Send a test notification moved to Settings → Notifications, so the Reminders list stays focused on actual reminders.
- How to Use expanded with guides for the Renovation Planner, Arbor tree care, and Achievements.
- Trees and tree logs are now included in backup, export and import.

### 2.1.0 — 2026-08-10

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

### 2.0.0 — 2026-08-05

• AI Diagnose — Snap a photo of any weed, disease, or damage and get an instant ID with a step-by-step treatment plan.
• AI Assistant — Ask any lawn-care question and get expert-level answers powered by advanced AI, anytime you need them.
• Bio Watch — Track pest, fungus, and disease pressure anywhere in the world using your lat/lon — no zip code required.
• Redesigned Weather Hub — Live forecast, hourly rollover, blended today projections, and Spray Windows with go/no-go ratings.
• Growing Degree Days (GDD) — Local GDD tracking, PGR reapply schedules, and pest/weed application windows tuned to your climate.
• Warranty Keeper — Log equipment maintenance, store receipts, and never miss a warranty expiration date.
• Product Library Redesign — Curated brand database with granular specs (NPK, coverage, AIs, application rates) and AI-powered lookup when adding new products.
• Cocktail Mixing — Log tank mixes with multiple products; get NPK delivery math, coverage, and cost per zone automatically.
• Season Archive — Roll up an entire season into a report with CSV export for records and reviews.
• Multi-Zone Support — Track front, back, side, and specialty zones independently with per-zone reminders and photo journals.
• Full Worldwide Support — Every calculation, weather feed, and biological tracker now works globally.
• Metric / Imperial Everywhere — Full dynamic unit conversion across the entire app, including calendars, notes, and archives.

Other Improvements:

• Full-screen Pro paywall with branded close button.
• Faster loading and hourly weather auto-refresh.
• Precision fixes for NPK, RTS, and cocktail math.
• Redesigned How-to-Use onboarding.
• Cleaner Products screen with long-press batch select.
• Category filter dropdown + universal back buttons.
• Dozens of unit-consistency and rounding fixes.

### 1.4.0 — 2026-07-15

• Brand-new onboarding & learning hub — 21 guided steps + animated tips.
• GDD tracker now covers PGRs, fungicides, weeds, pests, and diseases.
• Cocktail apps: per-product Retire/Re-add + smarter supersede logic.
• Set an NPK target on any product inside a cocktail log.
• Reset-all-data truly starts fresh so you can re-run the setup wizard.
• Cleaner subscription plans (monthly + yearly, with per-month price
  shown on annual).
• UI polish, improvements, and bug fixes.

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All apps by REINALDO CAMACHO: https://appshunter.io/developer/6786804899

## Related topics

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-04.*