# Ground Spray vs NozzleCalc

The clearest difference is update cadence: Ground Spray at every 12 months against NozzleCalc's every 49 months. Ground Spray also leads on iOS requirement (9.3 vs 11.0). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Ground Spray against 5.0 for NozzleCalc. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Ground Spray ships an update every 12 months, NozzleCalc every 49 months. The most recent releases landed on October 5, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Ground Spray | NozzleCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/ground-spray/id528759748/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/nozzlecalc/id794048259/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 12 months** | Every 49 months |
| Monetization | Free | Free |
| Size | 10 MB | 13 MB |
| Requires iOS | **9.3** | 11.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [University of Nebraska - Lincoln](https://appshunter.io/developer/317236993) | [Greenleaf Technologies](https://appshunter.io/developer/794048262) |

## What reviewers say

### Ground Spray

[App page](https://appshunter.io/ios/app/ground-spray/id528759748)

This utility app helps custom applicators and growers predict spray quality and droplet size spectrum before application. It uses research data to calculate spray characteristics based on user-inputted parameters like nozzle type and pressure, aiding in pesticide efficacy and drift mitigation.

**Highlights:** Predict spray quality, Calculate droplet size spectrum, Input nozzle type, angle, orifice size, pressure, Save and email results, Mitigate pesticide drift, Access up-to-date spray quality information

**Features:** macOS Compatibility

**In-app purchases:** none


### NozzleCalc

[App page](https://appshunter.io/ios/app/nozzlecalc/id794048259)

Quickly calculate sprayer settings for specific nozzles on the go. Determine optimum droplet size and PSI for your applications. Includes a reference section and direct contact to support.

**Highlights:** Sprayer setting calculations, Droplet size determination, PSI calculation, Customizable application rate, speed, and spacing, Reference section, Direct contact to support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ground Spray free?

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

### Is NozzleCalc free?

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

### Which has better reviews, Ground Spray or NozzleCalc?

Ground Spray and NozzleCalc are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Ground Spray or NozzleCalc have ads?

Neither Ground Spray nor NozzleCalc shows ads.

### Which is updated more often, Ground Spray or NozzleCalc?

Ground Spray ships an update every 12 months, and NozzleCalc every 49 months. Most recently, Ground Spray was updated on October 5, 2026 and NozzleCalc 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.*