# GDU Calculator vs COP­­­­

The clearest difference is update cadence: COP­­­­ at every 9 days against GDU Calculator's every 6 weeks. GDU Calculator's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

GDU Calculator ships an update every 6 weeks, COP­­­­ every 9 days. The most recent releases landed on October 23, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | GDU Calculator | COP­­­­ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (11 ratings)](https://appshunter.io/ios/app/gdu-calculator/id850528308/reviews)** | — |
| Number of ratings | **11** | — |
| Positive reviews | 25.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 9 days** |
| Monetization | Free | — |
| Size | 57 MB | 119 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ag PhD](https://appshunter.io/developer/520210329) | [Mohamed Attia](https://appshunter.io/developer/1767335495) |

## 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


### COP­­­­

[App page](https://appshunter.io/ios/app/cop/id6761825891)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is GDU Calculator free?

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

### Is COP­­­­ free?

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

### Do GDU Calculator or COP­­­­ have ads?

Neither GDU Calculator nor COP­­­­ shows ads.

### Which is updated more often, GDU Calculator or COP­­­­?

GDU Calculator ships an update every 6 weeks, and COP­­­­ every 9 days. Most recently, GDU Calculator was updated on October 23, 2026 and COP­­­­ on October 15, 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.*