# Cotton Apps vs GPD

The clearest difference is review sentiment: GPD at 100% against Cotton Apps's 67%. Cotton Apps's advantage is update cadence (monthly vs every 2 months). 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.

Cotton Apps ships an update monthly, GPD every 2 months. The most recent releases landed on September 23, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Cotton Apps | GPD |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free | Free |
| Size | 68 MB | 20 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FABIO RAFAEL ECHER](https://appshunter.io/developer/1450184888) | [Charles Steinmetz](https://appshunter.io/developer/1514567876) |

## What reviewers say

### Cotton Apps

[App page](https://appshunter.io/ios/app/cotton-apps/id1457878097)

This application aids in decision-making and management for cotton farming. It provides agronomic information, fiber quality data, and disease resistance for cotton cultivars, helping to reduce costs and increase productivity.

**Highlights:** Agronomic information consultation, Fiber quality data, Cultivar disease reaction, Cultivar comparison, Seed stand and cost calculation, Sowing time impact analysis

**Features:** Vision Pro support

**In-app purchases:** none


### GPD

[App page](https://appshunter.io/ios/app/gpd/id1514567877)

This app helps farmers assess planting uniformity by measuring seed spacing. It calculates the Coefficient of Variation (CV%) and analyzes distribution regularity, identifying acceptable spacing, doubles, and skips to improve crop yield.

**Highlights:** Measures seed spacing uniformity, Calculates Coefficient of Variation (CV%), Analyzes distribution regularity (acceptable, doubles, skips), Identifies causes of planting errors, Aids in improving plantability

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

**In-app purchases:** none


## Frequently asked questions

### Is Cotton Apps free?

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

### Is GPD free?

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

### Do Cotton Apps or GPD have ads?

Neither Cotton Apps nor GPD shows ads.

### Which is updated more often, Cotton Apps or GPD?

Cotton Apps ships an update monthly, and GPD every 2 months. Most recently, Cotton Apps was updated on September 23, 2026 and GPD on September 17, 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.*