# John Blue LBMS vs NozzleCalc

The clearest difference is update cadence: John Blue LBMS at every 5 months against NozzleCalc's every 49 months. NozzleCalc's advantage is iOS requirement (11.0 vs 13.0). 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.

John Blue LBMS ships an update every 5 months, NozzleCalc every 49 months. The most recent releases landed on September 21, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | John Blue LBMS | NozzleCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/nozzlecalc/id794048259/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 49 months |
| Monetization | — | Free |
| Size | 53 MB | 13 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Advanced Systems Technology - John Blue Co.](https://appshunter.io/developer/714388629) | [Greenleaf Technologies](https://appshunter.io/developer/794048262) |

## What reviewers say

### John Blue LBMS

[App page](https://appshunter.io/ios/app/john-blue-lbms/id624045904)

**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 John Blue LBMS free?

John Blue LBMS is free to download, with no in-app purchases.

### Is NozzleCalc free?

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

### Do John Blue LBMS or NozzleCalc have ads?

Neither John Blue LBMS nor NozzleCalc shows ads.

### Which is updated more often, John Blue LBMS or NozzleCalc?

John Blue LBMS ships an update every 5 months, and NozzleCalc every 49 months. Most recently, John Blue LBMS was updated on September 21, 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.*