GDU Calculator vs Smithfield Grain
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.
Smithfield Grain
Access real-time harvest data and manage your grain facility operations directly from your mobile device. This app offers tools for signing contracts, viewing cash bids, futures, scale tickets, and commodity balances to help growers save time and maximize profits.
- Real-time harvest information
- eSign contracts
- View cash bids
- Access futures data
- Manage scale tickets
- Track commodity balances
- View settlement information
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Real-time harvest information for growers, by Smithfield Grain. The Smithfield Grain app is an essential mobile solution that connects your operation to your grain facility, providing real-time, actionable information to help you manage and grow your business. To get the most out of our app and stay updated with our communications, we recommend choosing to allow notifications. With a robust toolset that's constantly evolving to meet the demands of the modern grower, your Smithfield Grain app is built with powerful features to help you save time and maximize profits, including: eSign: Sign contracts from your mobile device Cash Bids: View a location's cash bids in real-time Futures: See Grains, Feed, Livestock, and Ethanol futures listed in order of your preference Scale Tickets: Easily access and filter scale tickets Contracts: See contract balances, including locked-in basis/futures prices Commodity Balances: View your commodity inventories Settlements: See information on your payments, when and where you need it The Smithfield Grain app is free, secure, and developed by the industry-leading Bushel platform.
Screenshots
Verdict
The clearest difference is rating: Smithfield Grain at 5.0 against GDU Calculator's 2.5. GDU Calculator's advantage is iOS requirement (13.0 vs 16.0). 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.
Smithfield Grain holds the better App Store score, 5.0 against 2.5. Both are backed by a comparable volume of ratings — 11 and 4 respectively.
Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on November 4, 2026 and November 2, 2026 respectively.
| Parameter | GDU Calculator | Smithfield Grain |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (11 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 25.0% of reviews | — |
| Number of ratings | 11 — better | 4 |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 57 MB | 5 MB |
| Age rating | +4 | 4+ |
| Developer | Ag PhD | Smithfield Foods, Inc. |
Customer experience
GDU Calculator
Smithfield Grain
In-app purchases
GDU Calculator
No in-app purchases
Smithfield Grain
No in-app purchases
Questions
Is GDU Calculator free?
Is Smithfield Grain free?
Which has better reviews, GDU Calculator or Smithfield Grain?
Do GDU Calculator or Smithfield Grain have ads?
Which is updated more often, GDU Calculator or Smithfield Grain?
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