# GDU Calculator vs Commodity Classic 2026

The clearest difference is rating: Commodity Classic 2026 at 5.0 against GDU Calculator's 2.5. GDU Calculator's advantage is update cadence (every 6 weeks vs every 3 months) and ratings volume (11 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Commodity Classic 2026 holds the better App Store score, 5.0 against 2.5. That said, the two scores are not equally well evidenced: GDU Calculator has 11 ratings behind it against 2, so its average is the more settled of the two.

GDU Calculator ships an update every 6 weeks, Commodity Classic 2026 every 3 months. The most recent releases landed on October 23, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | GDU Calculator | Commodity Classic 2026 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (11 ratings)](https://appshunter.io/ios/app/gdu-calculator/id850528308/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/commodity-classic-2026/id1499502200/reviews)** |
| Number of ratings | **11** | 2 |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 57 MB | 90 MB |
| Requires iOS | **13.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Ag PhD](https://appshunter.io/developer/520210329) | [National Corn Growers Association](https://appshunter.io/developer/599028225) |

## What reviewers say

### GDU Calculator

[App page](https://appshunter.io/ios/app/gdu-calculator/id850528308)

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.

**Highlights:** Growing Degree Unit calculation, Corn and wheat crop support, Day-by-day temperature data, Push notifications for field issues, Crop growth stage tracking

**Features:** macOS Compatibility

**In-app purchases:** none


### Commodity Classic 2026

[App page](https://appshunter.io/ios/app/commodity-classic-2026/id1499502200)

This agricultural event app provides farmers with the information and solutions needed to gain clarity and plan for their farm's future success. It's designed by farmers, for farmers, offering a unique educational experience for all crop types and farm sizes.

**Highlights:** Farmer-led agricultural experience, Educational content for farm success, Solutions and information for farmers, Vision creation for farm future, Suitable for all crop types and farm sizes

**Features:** Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is GDU Calculator free?

GDU Calculator is free to download, with no in-app purchases.

### Is Commodity Classic 2026 free?

Commodity Classic 2026 is free to download, with no in-app purchases.

### Which has better reviews, GDU Calculator or Commodity Classic 2026?

Commodity Classic 2026 is rated higher. GDU Calculator averages 2.5 out of 5 from 11 ratings, while Commodity Classic 2026 averages 5.0 from 2 ratings.

### Do GDU Calculator or Commodity Classic 2026 have ads?

Neither GDU Calculator nor Commodity Classic 2026 shows ads.

### Which is updated more often, GDU Calculator or Commodity Classic 2026?

GDU Calculator ships an update every 6 weeks, and Commodity Classic 2026 every 3 months. Most recently, GDU Calculator was updated on October 23, 2026 and Commodity Classic 2026 on October 21, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*