# EarthOptics Sampling vs Corn Tools app

The clearest difference is update cadence: EarthOptics Sampling at every 8 days against Corn Tools app's every 31 months. Corn Tools app's advantage is iOS requirement (14.0 vs 18.0). 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.

EarthOptics Sampling ships an update every 8 days, Corn Tools app every 31 months. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | EarthOptics Sampling | Corn Tools app |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (7 ratings)](https://appshunter.io/ios/app/earthoptics-sampling/id1471211352/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 31 months |
| Monetization | Free | — |
| Size | 91 MB | 217 MB |
| Requires iOS | 18.0 | **14.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Pattern Ag, Inc.](https://appshunter.io/developer/1471211351) | [Syngenta Agro AG](https://appshunter.io/developer/441897859) |

## What reviewers say

### EarthOptics Sampling

[App page](https://appshunter.io/ios/app/earthoptics-sampling/id1471211352)

This application assists field professionals in executing soil sampling protocols with precision. It leverages advanced soil data and services, including in-field sensing and laboratory testing, to provide comprehensive soil management data.

**Highlights:** Soil attribute measurement and quantification, In-field proximal sensing, Laboratory testing integration, Field sampling protocol execution, Soil management data products

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

**In-app purchases:** none


### Corn Tools app

[App page](https://appshunter.io/ios/app/corn-tools-app/id6478855652)

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

**In-app purchases:** none


## Frequently asked questions

### Is EarthOptics Sampling free?

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

### Is Corn Tools app free?

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

### Do EarthOptics Sampling or Corn Tools app have ads?

Neither EarthOptics Sampling nor Corn Tools app shows ads.

### Which is updated more often, EarthOptics Sampling or Corn Tools app?

EarthOptics Sampling ships an update every 8 days, and Corn Tools app every 31 months. Most recently, EarthOptics Sampling was updated on October 2, 2026 and Corn Tools app on October 7, 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.*