# Spray Nozzle calculator vs Edge Systems

The clearest difference is update cadence: Edge Systems at monthly against Spray Nozzle calculator's every 31 months. Spray Nozzle calculator's advantage is iOS requirement (8.4 vs 15.6). 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.

Spray Nozzle calculator ships an update every 31 months, Edge Systems monthly. The most recent releases landed on October 21, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Spray Nozzle calculator | Edge Systems |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/spray-nozzle-calculator/id374184560/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 31 months | **Monthly** |
| Monetization | Free | — |
| Size | 0 MB | 26 MB |
| Requires iOS | **8.4** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CCIC Pty Ltd](https://appshunter.io/developer/374184563) | [Innovation Industries Pty Ltd](https://appshunter.io/developer/1700207679) |

## What reviewers say

### Spray Nozzle calculator

[App page](https://appshunter.io/ios/app/spray-nozzle-calculator/id374184560)

Calculates the correct spray nozzle size and operating pressure for hay balers to accurately apply liquid preservatives. Input operating conditions, dose rate, moisture, and tons per hour to determine the optimal nozzle color and pressure.

**Highlights:** Nozzle size and pressure calculation, Preservative application for hay balers, Input operating conditions, Dose rate calculation, Moisture and TPH input, Nozzle color determination

**Features:** macOS Compatibility

**In-app purchases:** none


### Edge Systems

[App page](https://appshunter.io/ios/app/edge-systems/id6455940332)

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

**In-app purchases:** none


## Frequently asked questions

### Is Spray Nozzle calculator free?

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

### Is Edge Systems free?

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

### Do Spray Nozzle calculator or Edge Systems have ads?

Neither Spray Nozzle calculator nor Edge Systems shows ads.

### Which is updated more often, Spray Nozzle calculator or Edge Systems?

Spray Nozzle calculator ships an update every 31 months, and Edge Systems monthly. Most recently, Spray Nozzle calculator was updated on October 21, 2026 and Edge Systems 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.*