# PhD em Soja vs Cotton Apps

The clearest difference is review sentiment: PhD em Soja at 100% against Cotton Apps's 67%. PhD em Soja also leads on update cadence (weekly vs monthly) and iOS requirement (10.0 vs 15.0). 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.

PhD em Soja ships an update weekly, Cotton Apps monthly. The most recent releases landed on June 1, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | PhD em Soja | Cotton Apps |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Monetization | Free | Free |
| Size | 12 MB | 68 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dynamica Soft Sistemas Ltda - ME](https://appshunter.io/developer/1040567644) | [FABIO RAFAEL ECHER](https://appshunter.io/developer/1450184888) |

## What reviewers say

### PhD em Soja

[App page](https://appshunter.io/ios/app/phd-em-soja/id1173157077)

This application helps soybean farmers identify the current phenological stage of their crops and track nutrient absorption. It provides tools for interpreting soil and leaf analysis, visualizing nutrient uptake, and simulating nutrient extraction.

**Highlights:** Phenological stage identification, Nutrient absorption tracking, Soil and leaf analysis interpretation, Nutrient uptake graphs and tables, Customized nutrient extraction simulator

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is PhD em Soja free?

PhD em Soja is free to download, with no in-app purchases.

### Is Cotton Apps free?

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

### Do PhD em Soja or Cotton Apps have ads?

Neither PhD em Soja nor Cotton Apps shows ads.

### Which is updated more often, PhD em Soja or Cotton Apps?

PhD em Soja ships an update weekly, and Cotton Apps monthly. Most recently, PhD em Soja was updated on June 1, 2026 and Cotton Apps on September 23, 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.*