GDU Calculator vs NSPro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GDU Calculator
This app helps corn and wheat growers calculate Growing Degree Units (GDUs) for their crops. It provides daily temperature and GDU data, and can send push notifications about potential field issues based on crop growth stages.
- Growing Degree Unit calculation
- Corn and wheat crop support
- Day-by-day temperature data
- Push notifications for field issues
- Crop growth stage tracking
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The Ag PhD GDU Calculator is a reference for corn and wheat growers to determine the amount of Growing Degree Units for their crops in the current crop season. Includes day-by-day breakdown of temperature and GDU data and has the option for push notifications informing growers of potential problems in their fields based on their crop growth stage, as calculated by the crop GDU from planting date.
NSPro
This app provides an interactive dashboard for agronomists to analyze soil, tissue, and water samples. It offers historical data access and custom report building to help understand nutrient issues. Access requires an assigned login.
- Soil, tissue, and water sample analysis
- Interactive nutrient issue dashboard
- Historical sample data access
- Custom report building
- Web and app access
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NSPro is the analytical tool for NutriScription soil, tissue, and water samples. NSPro is an interactive dashboard that allows an agronomist to better understand nutrient issues. NSPro also houses historical samples for easy access and custom report building. NS Pro can be accessed through its website (nspro.nutriscription.net) along with the app. An assigned login must be created for access to this app. Contact digital.support@nutrien.com for inquiry.
Screenshots
Verdict
The clearest difference is rating: NSPro at 4.5 against GDU Calculator's 2.5. GDU Calculator's advantage is review sentiment (25% vs 0%) and iOS requirement (13.0 vs 15.6). On price, ratings volume, update cadence and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
NSPro holds the better App Store score, 4.5 against 2.5. Both are backed by a comparable volume of ratings — 11 and 4 respectively. Written reviews complicate that: 25% of GDU Calculator's written reviews are positive against 0% of NSPro's, so the app with the better star average is not the one people write more warmly about.
GDU Calculator ships an update every 6 weeks, NSPro every 2 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.
| Parameter | GDU Calculator | NSPro |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (11 ratings) | 4.5 (4 ratings) — better |
| Positive reviews | 25.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 11 — better | 4 |
| Update frequency | Every 6 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 57 MB | 22 MB |
| Age rating | +4 | 4+ |
| Developer | Ag PhD | Nutrien AG Solutions, Inc. |
Customer experience
GDU Calculator
NSPro
In-app purchases
GDU Calculator
No in-app purchases
NSPro
No in-app purchases
