# John Blue LBMS — Liquid Blockage Monitor System

> Liquid Blockage Monitor System (iPhone/iPad app by Advanced Systems Technology - John Blue Co..)

- Source: https://appshunter.io/ios/app/john-blue-lbms/id624045904 (this page in markdown: same URL + `.md`)
- Developer: [Advanced Systems Technology - John Blue Co.](https://appshunter.io/developer/714388629)
- Category: Utilities, Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 13.0 · 53 MB
- Languages: American English
- Released: 2013-03-28
- Data updated: 2026-03-07
- User reviews in markdown: https://appshunter.io/ios/app/john-blue-lbms/id624045904/reviews.md

## What is John Blue LBMS?

This is a complementary app for use with John Blue's Liquid Blockage Monitor System.  Now you can know your liquid application flow from the cab of your tractor.  The patented system alerts you when a ball and flow in an individual row has dropped below a user selected level in a John Blue VisaGage II Flow Monitor.  Two different products may be monitored at the same time, and real-time ball position information is relayed to the user.  The system communicates via Wi-Fi with the iPad or iPhone, which serves as the control panel and display using this app.

Continued use of GPS running in the background can dramatically decrease battery life.


## Version history (last 5 releases)

### v2.0.5 — 2025-11-05

The user’s manual is now available online, making it easier than ever to view, download, or share the latest version.

### v2.0.4 — 2025-06-04

We heard that the text was too small and the display hard to read in a moving cab.  This version makes the text bigger and bolder, and scales the graphs so they are easier to read when moving.  Please let us know if this helps, or if we need to keep working on it.

### v2.0.3 — 2024-11-09

We fixed a few things we overlooked in the last version:

  * Lights on the ECUs will now flash when a row is blocked.

  * If a row does not have a magnetic ball it will be drawn in a dark color.

  * When you shut down your pump(s) to deal with a blockage, the app will remember which rows, if any, were blocked and will keep flashing those lights on the ECUs and on screen.

We also updated the user's manual in the app.

### v2.0.0 — 2024-09-05

We made major updates to make the application easier to use.  In particular, the Information / Tools page organizes all the ECU, blockage, calibration data, and User Manual are easier to read and use.

### 1.07.80 — 2019-11-18

Updated new logo.

## Apps similar to John Blue LBMS

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [龙嘉SCM供应商](https://appshunter.io/ios/app/scm/id1459545200) | — | Free | Utilities |
| [NovaTec - Diário de Obras](https://appshunter.io/ios/app/novatec/id1460271080) | — | Free | Utilities |
| [Pusher for Firebase](https://appshunter.io/ios/app/pusher-for-firebase/id1450720020) | 5.0 (1) | $0.99 | Utilities |
| [Miitems](https://appshunter.io/ios/app/miitems/id1464179200) | — | Free | Utilities |
| [Calendar Clock](https://appshunter.io/ios/app/calendar-clock/id1451445740) | — | $0.99 | Utilities |
| [创衣盒子dBOX](https://appshunter.io/ios/app/dbox/id1462858880) | — | Free | Utilities |

## More apps by Advanced Systems Technology - John Blue Co.

- [John Blue Info Link](https://appshunter.io/ios/app/john-blue-info-link/id959991743)

All apps by Advanced Systems Technology - John Blue Co.: https://appshunter.io/developer/714388629

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-03-07.*