# John Blue LBMS vs Dock Watch

The clearest difference is update cadence: John Blue LBMS at every 5 months against Dock Watch's every 27 months. 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, Dock Watch every 27 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | John Blue LBMS | Dock Watch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/dock-watch/id1539542528/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 27 months |
| Monetization | — | Free |
| Size | 53 MB | 3 MB |
| Requires iOS | **13.0** | 14.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Advanced Systems Technology - John Blue Co.](https://appshunter.io/developer/714388629) | [Chad Herzog](https://appshunter.io/developer/1539542530) |

## What reviewers say

### John Blue LBMS

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Dock Watch

[App page](https://appshunter.io/ios/app/dock-watch/id1539542528)

This app notifies drivers when a loading dock light turns green, allowing them to rest. It pairs with a portable device clipped to the light and tracks dock times for future planning.

**Highlights:** Instant green light notifications, Tracks time to red and back to green, Calculates total dock time, Records dock times across the US, Facilitates trip planning and bidding

**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 Dock Watch free?

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

### Do John Blue LBMS or Dock Watch have ads?

Neither John Blue LBMS nor Dock Watch shows ads.

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

John Blue LBMS ships an update every 5 months, and Dock Watch every 27 months. Most recently, John Blue LBMS was updated on October 26, 2026 and Dock Watch on October 24, 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.*