NozzleCalc vs OrchardMAX
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
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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.
OrchardMAX
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Welcome to OrchardMAX This app helps you make every drop count when airblast spraying apple trees. It uses the Crop-Adapted Spraying (CAS) model to adjust the pesticide rate-pre-planted-area to match the size, shape and density of the trees. The app will calculate a sprayer prescription for each block of trees. That way, when combined with a properly calibrated sprayer, all trees should receive a consistent dose. Spraying according to this app will give the same control as a conventional application but will save a great deal of potentially wasted spray.
Screenshots
Verdict
The clearest difference is update cadence: OrchardMAX at every 5 months against NozzleCalc's every 49 months. On price, ads, in-app purchases and device support 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.
NozzleCalc ships an update every 49 months, OrchardMAX every 5 months. The most recent releases landed on September 23, 2026 and September 9, 2026 respectively.
| Parameter | NozzleCalc | OrchardMAX |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 49 months | Every 5 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 11.0 | 11.0 |
| Further details — not scored | ||
| Size | 13 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Greenleaf Technologies | AgNition Inc. |
In-app purchases
NozzleCalc
No in-app purchases
OrchardMAX
No in-app purchases









