NozzleCalc vs Aerial Nozzle Models
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NozzleCalc
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.
- Sprayer setting calculations
- Droplet size determination
- PSI calculation
- Customizable application rate, speed, and spacing
- Reference section
- Direct contact to support
Read full descriptionHide full description
Now you can quickly calculate sprayer settings for TurboDrop and AirMix nozzles anywhere with the official Greenleaf Technologies Nozzle Calculator app. Determine optimum droplet size and PSI for all your applications on-the-go and spray with confidence. If you use Greenleaf Technologies spray nozzles for your applications this is the app you shouldn't be without! This is the simplest and most accurate nozzle calculator app for Greenleaf nozzles. See the droplet size each nozzle size generates at a variety of precise pressures. Customize by setting your application rate (gal/ac), speed (mph), spacing (inches), and flowrate (gal/min). The reference section provides additional product info and industry terminology. Speak directly to a knowledgeable Greenleaf Technologies representative with a touch with the autodial contact feature.
Aerial Nozzle Models
This application provides models for aerial spray nozzles based on extensive research publications. It offers data derived from studies on fixed-wing and rotary-wing applications, supporting agricultural and pesticide delivery systems.
- Spray nozzle models for aerial applications
- Data from fixed-wing research
- Models for rotary-wing applications
- Supports pesticide formulation and delivery
- Based on USDA ARS publications
Read full descriptionHide full description
These models are based on the results from the research documented by the following publications: Fritz, B. K. and Hoffmann, W. C. Update to the USDA ARS fixed wing spray nozzle models. Trans. ASABE 58(2):281-295. 2015. Fritz, B. K. and Hoffmann, W. C. Developing the USDA ARS spray nozzle models for rotary wing applications. Appl. Engr. Agric. 33(5):631-640. 2017. Fritz, B. K. Straight-stream nozzle models to support aerial applications. Pesticide Formulation and Delivery Systems: 42nd Volume, Building the Future of Agrochemicals for 2030 and Beyond. Krista Turpin, ed. J. ASTM Int. 2024.
Screenshots
Verdict
The clearest difference is update cadence: Aerial Nozzle Models at every 2 days against NozzleCalc's every 49 months. NozzleCalc's advantage is iOS requirement (11.0 vs 18.5). On price, rating, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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 NozzleCalc against 5.0 for Aerial Nozzle Models. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
NozzleCalc ships an update every 49 months, Aerial Nozzle Models every 2 days. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.
| Parameter | NozzleCalc | Aerial Nozzle Models |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 49 months | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 18.5 |
| Further details — not scored | ||
| Size | 13 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Greenleaf Technologies | United States Department of Agriculture, Agricultural Research Service |
In-app purchases
NozzleCalc
No in-app purchases
Aerial Nozzle Models
No in-app purchases
Questions
Is NozzleCalc free?
Is Aerial Nozzle Models free?
Which has better reviews, NozzleCalc or Aerial Nozzle Models?
Do NozzleCalc or Aerial Nozzle Models have ads?
Which is updated more often, NozzleCalc or Aerial Nozzle Models?
Other comparisons
