# Scan-Lock+

> App to manage Whelen lighthead flash patterns via Bluetooth. (iPhone/iPad app by Whelen Engineering Co..)

- Source: https://appshunter.io/ios/app/scan-lock-plus/id1273746211 (this page in markdown: same URL + `.md`)
- Developer: [Whelen Engineering Co.](https://appshunter.io/developer/1273746210)
- Category: Utilities
- Price: Free
- Rating: 5.00/5 from 5 App Store ratings
- Age rating: 4+
- Requires: iOS 8.0 · 41 MB
- Languages: American English
- Released: 2017-09-29
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/scan-lock-plus/id1273746211/reviews.md

## What is Scan?

Scan-Lock+ is the simplest way to change Whelen flash patterns. Designed for optimal convenience, Scan-Lock+ features an easy to use interface and utilizes a Bluetooth connection. 

Download the Scan-Lock+ app and browse, test, and assign Whelen flash patterns right from your phone.    

Key Features

Scroll and Update Flash Patterns
Using a Scan-Lock+ Programmer, pair any compatible Whelen lighthead with the Scan-Lock+ app and easily browse, test, and assign flash patterns.

Test Flash Patterns 
Preview any flash pattern for up to 20 seconds. 

Easily Access the Steady Pattern 
Enable the steady option right from the top of the flash pattern list.

Bluetooth Connectivity
The Scan-Lock+ app communicates to a Scan-Lock+ Programmer via Bluetooth connection.

Supported Whelen Lightheads
Compatible with any Whelen lighthead that supports Scan-Lock+ or the original Scan-Lock.

A Scan-Lock+ Programmer is required to use this app.

See more at www.whelen.com/scanlockplus

## Key features

- Browse and assign flash patterns
- Test patterns up to 20 seconds
- Access steady pattern option
- Bluetooth connectivity
- Supports compatible Whelen lightheads


## Frequently asked questions about Scan

### Does Scan-Lock+ have ads?

No, Scan-Lock+ is ad-free. The app does not contain any advertisements.

### What is the rating for Scan-Lock+?

Scan-Lock+ has a perfect rating of 5.0 stars based on 5 user reviews.

### Is Scan-Lock+ free to download?

Yes, Scan-Lock+ is available for free download on the App Store.

### What devices is Scan-Lock+ compatible with?

Scan-Lock+ is supported on iPhone and iPod devices.

### What is the age rating for Scan-Lock+?

Scan-Lock+ has an age rating of 4+, making it suitable for a wide audience.

### How often is Scan-Lock+ updated?

The app was last updated on October 21, 2017, with version 1.1. Further updates may be released by the developer.

### Do I need any additional hardware to use Scan-Lock+?

Yes, a Scan-Lock+ Programmer is required to use the Scan-Lock+ app to control Whelen lightheads.

### What Whelen lightheads are supported by Scan-Lock+?

Scan-Lock+ is compatible with any Whelen lighthead that supports Scan-Lock+ or the original Scan-Lock technology.

## Version history (last 2 releases)

### 1.1 — 2017-10-21

This app has been updated by Apple to display the Apple Watch app icon.

New Icons

### 1.0 — 2017-09-29

No release notes.

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*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 2026-06-01.*