GCI Turf Calculator
Utilities
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Take the guesswork out of lawn care. Whether you're applying granular fertilizer, liquid concentrate, or specialty products, this app gives you precise application rates in seconds. Just enter your fertilizer's N-P-K, target nitrogen rate, and lawn size — you'll instantly see how much product you need, how many bags or containers to buy, and exactly what it'll cost.
Save your go-to fertilizers as Presets to skip the data entry next time. Track every application in the built-in Lawn Journal with before and after photos, so you can see what's working and build a complete history of your lawn over time.
Built for homeowners, lawn enthusiasts, and DIY turf nerds who want professional results without the math. Stop guessing. Start growing.
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Bug Fixes
The developer, GCI Turf Services, Inc., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Contact Info
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- GCI Turf Services, Inc.
- Size
- 15 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.2 or later.
- iPhone
Requires iOS 18.2 or later. - Mac
Requires macOS 15.2 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.2 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © GCITurf All Rights Reserved 2026