# FieldScout GreenIndex+ Turf > Measures turf health using chlorophyll content and DGCI with a color reference board. (iPhone/iPad app by Spectrum Technologies, Inc..) - Source: https://appshunter.io/ios/app/fieldscout-greenindex-plus-turf/id692008137 (this page in markdown: same URL + `.md`) - Developer: [Spectrum Technologies, Inc.](https://appshunter.io/developer/577409472) - Category: Business, Reference - Price: $99.99 - Age rating: 4+ - Requires: iOS 11.0 · 10 MB - Languages: American English, Hungarian - Released: 2013-09-02 - Data updated: 2026-09-07 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/fieldscout-greenindex-plus-turf/id692008137/reviews.md ## What is FieldScout GreenIndex+ Turf? Use the FieldScout GreenIndex+ Turf app to measure turf health via the chlorophyll content (relative greenness) of the turf. The app determines the DGCI (Dark Green Color Index), which is a number between 0 and 1 related to the chlorophyll content. GreenIndex+ Turf will display a Visual Rating, which can be customized to match your rating protocol. You must use the app with specific green and yellow color standards on a target board in order for the DGCI to be computed accurately. To begin, point the camera at the grey area of the color reference board and tap the White Balance button to lock the camera’s white balance. Then it's as easy as: 1. Lay the color reference board on the ground and take a picture of the turf accompanied by the green and yellow areas on the board. 2. On the screen, tap the green and yellow standards and the turf to identify the areas to be analyzed. Move and resize the turf’s circle to get the exact area that you want. 3. Read the results: DGCI and Visual Rating. The rating scale can be customized and saved by turf variety. Results are logged with time stamps and GPS information (if Location Services are enabled), and can be emailed for further analysis with other programs. Averaging can be selected to combine multiple samples into a single computation, or to group related readings while maintaining the separate data values. Images can also be paired for comparison of different sections of turf. Use the White Balance Lock feature to ensure accuracy in low light environments. Requires a rear-camera-equipped iPhone, iPod Touch, iPad Mini, or iPad, running iOS 6.0 or later. For DGCI calculations to be accurate, pictures must include a color reference board with specific green and yellow standard color areas. GreenIndex+ Turf Boards are available from www.specmeters.com/GreenIndexTurf. ## Key features - Measures turf health via chlorophyll content - Calculates Dark Green Color Index (DGCI) - Customizable Visual Rating - Logs results with timestamps and GPS - Averaging of multiple samples - Image pairing for comparison ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/fieldscout-greenindex-plus-turf/id692008137/reviews.md ### 2/5 — Great concept, haven't seen payback. *2014-09-16* Maybe I'm using it wrong but I get similar values between healthy turf and an area with significant anthracnose. Similar results with check plots and fertilized areas. Was hoping to quantify some areas with visual differences but hasn't been all that useful. Great concept and hoping to figure this thing out! ## Frequently asked questions about FieldScout GreenIndex+ Turf ### What is the FieldScout GreenIndex+ Turf app? FieldScout GreenIndex+ Turf is a business application designed to measure turf health by analyzing chlorophyll content and calculating the Dark Green Color Index (DGCI). ### How does FieldScout GreenIndex+ Turf calculate DGCI? DGCI is calculated by taking a picture of the turf with a specific color reference board and analyzing the green and yellow standard color areas. The app then computes a DGCI value between 0 and 1, indicating chlorophyll content. ### What are the requirements to use FieldScout GreenIndex+ Turf accurately? For accurate DGCI calculations, pictures must include a color reference board with specific green and yellow standard color areas. The app requires a rear-camera-equipped iPhone, iPod Touch, iPad Mini, or iPad running iOS 6.0 or later. ### Can FieldScout GreenIndex+ Turf be used without a color reference board? No, for DGCI calculations to be accurate, pictures must include a color reference board with specific green and yellow standard color areas. These boards are available for purchase from www.specmeters.com/GreenIndexTurf. ### What kind of data does FieldScout GreenIndex+ Turf log? Results are logged with time stamps and GPS information if Location Services are enabled. This data can be emailed for further analysis with other programs. ### Does FieldScout GreenIndex+ Turf support averaging multiple readings? Yes, averaging can be selected to combine multiple samples into a single computation or to group related readings while maintaining separate data values. ### What is the price of FieldScout GreenIndex+ Turf? FieldScout GreenIndex+ Turf is a paid application priced at $99.99. ### How often is FieldScout GreenIndex+ Turf updated? The app was last updated on September 3, 2023, to version 3.0.4. ## Version history (last 5 releases) ### 3.0.4 — 2023-09-03 3.0.4 Revised to use the latest and greatest iOS functions ### 3.0.1 — 2020-06-09 3.0.1 Revised to use the latest and greatest iOS functions ### 2.1 — 2017-04-27 v2.1 Performance improvements This version requires iOS 8.0 or later. v2.0 The first time the app is run, a screen tour will introduce settings and the measurement process. The tour can be rerun later from the Info screen. The Adjust Visual Ratings slider bar has been changed to set Visual Rating values in half-integer increments. Logged records now default to local time, with UTC as an option. Column headers accompany all values in the Log file. The Log file names now include date and time to avoid accidentally overwriting previous files, and the extension has been changed to '.csv' to enable double-click opening in Excel. The Results screen has been redesigned to make averaging multiple readings easier for greater accuracy. (Tapping 'End Average' on each reading provides a no-average option.) Selecting Log Individual Readings groups multiple readings without averaging. This replaces the Compare Indexes feature in the previous version. IMPORTANT: To protect your logged results, be sure to email them before updating GreenIndex+ Turf. ### 2.0 — 2014-04-18 Support for native iOS 7 appearance. The first time the app is run, a screen tour will introduce settings and the measurement process. The tour can be rerun later from the Info screen. The Adjust Visual Ratings slider bar has been changed to set Visual Rating values in half-integer increments. Logged records now default to local time, with UTC as an option. Column headers accompany all values in the Log file. The Log file names now include date and time to avoid accidentally overwriting previous files, and the extension has been changed to '.csv' to enable double-click opening in Excel. The Results screen has been redesigned to make averaging multiple readings easier for greater accuracy. (Tapping 'End Average' on each reading provides a no-average option.) Selecting Log Individual Readings groups multiple readings without averaging. This replaces the Compare Indexes feature in the previous version. This version requires iOS 6.0 or later. IMPORTANT: To protect your logged results, be sure to email them before updating GreenIndex+ Turf. ### 1.1 — 2013-09-02 No release notes. ## Apps similar to FieldScout GreenIndex+ Turf | App | Rating | Price | Category | | --- | --- | --- | --- | | [PastureMap+](https://appshunter.io/ios/app/pasturemap-plus/id1664810460) | 2.8 (19) | Free | Business | | [Snappii Mobile Forms](https://appshunter.io/ios/app/snappii-mobile-forms/id1441762511) | 3.6 (8) | Free | Business | | [PBExpo](https://appshunter.io/ios/app/pbexpo/id6474414028) | — | Free | Business | | [Netpresenter Employee App](https://appshunter.io/ios/app/netpresenter-employee-app/id1504044987) | — | Free | Business | | [WPA](https://appshunter.io/ios/app/wpa/id975727469) | 5.0 (4) | Free | Business | | [SciSoc Mtg](https://appshunter.io/ios/app/scisoc-mtg/id1556878197) | 3.0 (4) | Free | Business | ## More apps by Spectrum Technologies, Inc. - [FieldScout GreenIndex+](https://appshunter.io/ios/app/fieldscout-greenindex-plus/id577409469) - [FieldScout Mobile](https://appshunter.io/ios/app/fieldscout-mobile/id975877748) - [WatchDog Mobile](https://appshunter.io/ios/app/watchdog-mobile/id1451317013) - [WatchDog Wind](https://appshunter.io/ios/app/watchdog-wind/id1664495899) - [FieldScout pH/EC/ORP](https://appshunter.io/ios/app/fieldscout-phecorp/id6448190563) All apps by Spectrum Technologies, Inc.: https://appshunter.io/developer/577409472 ## Related topics [brandt turf product finder](https://appshunter.io/ios/topics/brandt-turf-product-finder) · [field scout](https://appshunter.io/ios/topics/field-scout) --- *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 2026-09-07.*