# Uniden Siren

> WiFi control and audio monitoring for Uniden BCD536HP scanners. (iPhone/iPad app by Uniden Corporation.)

- Source: https://appshunter.io/ios/app/uniden-siren/id966444086 (this page in markdown: same URL + `.md`)
- Developer: [Uniden Corporation](https://appshunter.io/developer/514321728)
- Category: Utilities
- Price: Free
- Rating: 2.30/5 from 97 App Store ratings · 65 written reviews indexed
- Age rating: 12+
- Requires: iOS 7.0 · 3 MB
- Languages: American English
- Released: 2015-03-15
- Data updated: 2026-08-16
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/uniden-siren/id966444086/reviews.md

## What is Uniden Siren?

Siren is Uniden's long awaited scanner control app for the BCD536HP. The app allows you to listen to and control your scanner over a wifi link -- either a direct link to the scanner (useful for mobile applications) or over a local intranet connection.

V1 allows monitoring and control in scan mode. Future updates will continue to add more capabilities to the app.

Your scanner must be running the latest firmware to use this app. For information about the latest firmware, see http://info.uniden.com/UnidenMan4/BCD536HPFirmwareUpdate.

## Key features

- Remote scanner control
- WiFi audio streaming
- Scan mode monitoring
- Direct scanner link
- Intranet connection support

## What do users think of Uniden Siren?

Overall sentiment: negative

**Pros**

- 👍 Works locally on LAN
- 👍 Can listen remotely
- 👍 Works in background
- 👍 Audio quality decent (when it works)
- 👍 Basic functionality present

**Cons**

- 🐛 Frequent crashes
- 🐛 Unstable connections
- 🐛 Drops packets
- 🐛 Poor UI design
- 🐛 Outdated interface
- 🐛 Significant audio delay
- 🐛 No audio via Bluetooth/headphone jack
- 🐛 Not updated in years
- 🐛 Often stops responding
- 🐛 Difficult to set up
- 🐛 Limited functionality
- 🐛 Can crash app on mute tap
- 🐛 Audio issues with headphones
- 🐛 Low volume on Bluetooth
- 🐛 Scanner WiFi adapter issues
- 🐛 App looks amateurish
- 🐛 Not truly remote access

**Commonly reported bugs**

- App crashes when tapping mute button
- Drops connections and packets
- App crashes frequently
- Stops responding
- No audio on SDS200 scanner
- Accept button off screen on older OS
- WiFi adapter can get hosed up
- App does not work with iPhone X
- Application crashes every function
- App freezes on login screen
- Incompatible with older devices
- Audio only works on iPhone/iPad speaker
- Unit IDs not shown
- Replay button locks app
- App does not close properly
- App is blank and needs restart
- Does not connect to scanner
- Extreme low volume on Bluetooth
- App starts with headphones plugged in, still outputs to speaker
- Flaky audio
- Delay and lag on button pressing
- Background/mixing issues
- App does not connect
- Setup instructions missing

**Most requested features**

- Bluetooth audio output
- Audio out to Bluetooth headphones
- More remote controls for the radio
- Ability to adjust volume
- Update app for Bluetooth audio
- Support for newer iOS/Android versions
- Improved UI design
- Remote reset functionality
- Background/mixing improvements
- Full database editing on mobile
- Mac application

## Recent user reviews (10 of 65)

All indexed reviews: https://appshunter.io/ios/app/uniden-siren/id966444086/reviews.md

### 1/5 — Outdated

*2026-03-21, version 1.1.2*

Spend thousands of pounds with this company and they can’t get this up updated

### 5/5 — Run with No issues

*2025-06-28*

I have Zero issues with this program run off a SRS200

### 1/5 — Awful.

*2024-12-21*

I try to use this on my SDS200. Rarely works even with a dedicated wired LAN connection. Frustrating to operate and often just stops responding. Tapping the mute button on the app is an automatic crasher. Hasn’t been updated in 9 years. This app is an orphaned afterthought. Too bad. It could have been very useful. I’d have paid for a robust mobile solution.

### 1/5 — Trash ...

*2023-12-02, version 1.1.2*

Don't wast your time.  Drops connections and packets.

### 2/5 — App needs help

*2023-11-05, version 1.1.2*

This app needs help. UNIDEN come on!

### 4/5 — Works fairly decent with SDS200

*2023-07-24*

This is probably an orphan app but it is still usable, at least within a local area network…

### 2/5 — It works…keep wishing for improvements

*2023-05-07*

Does it work?….yes it can 🤔

Is it finicky?….you betcha! 🫤

Is it unpolished?…yep! 🫤

Does it look like a high school class project?….definitely! 🫤

I’m not going to crab about the 3 second delay.  It doesn’t matter if I’m in another part of the house.  

With all this said…as I write this…I AM listening to my BCD536 on my iPhone14+ in another part of my house via local LAN. Far away from the 536.  Nice👍

If I switch to another app…Siren continues working in the background.  Nice! 👍

I have waited years for this functionality! And it’s finally here!  Frankly, I gave up on any hope of a remote control app.  Perhaps it’s simply class action lawsuit avoidance.  Don’t sue us…We fulfilled our promise(barely) 

My hope is that Uniden will continue to improve this app or at least let another development team clean it up. 7 YEARS WITHOUT ANY UPDATE ?!?

I WOULD PAY (can you hear me Uniden? I WOULD PAY) to use a much more polished and stable app.  Like many others have pointed out…this app looks and functions like a beta convention demo app.  But it can work!!

I enjoy using my Uniden scanners.  I own 4 different models. They work well.  Please don’t let Siren die 😵 on the vine.

### 1/5 — Not very practical

*2022-03-27*

Considering then large wad of money I spent on the BCD536HP, I am not impressed how unstable this app is. I would have expected Uniden to have fixed this app by now.

### 5/5 — This app works great

*2022-02-23*

Remember to use the app and get the most out of it.
1 put your WiFi in the BCD536HP 
2 look inside the radio WiFi information 
     To see that the ip is there.
3 on you siren app. Information; settings; before you hit agree, check you have to put the same IP address in the siren as the radio has.
4 if you ever have a issue hit on the app. Information; setting agree. It will come right back.
5 if the app. Is not responding pull the USB out of the BCD536HP and plug it back in. 
 I’ve used this app. For two and a half years. Most of the problems people have with this is they don’t know what they are doing.

### 2/5 — Please update!!!

*2022-02-20, version 1.1.2*

This needs to be updated.

## Frequently asked questions about Uniden Siren

### What does the Uniden Siren app do?

This app allows you to remotely control and listen to your Uniden BCD536HP scanner over a WiFi connection. You can monitor audio streams and manage your scanner's functions, particularly in scan mode.

### What are the key features of the Uniden Siren app?

The app's primary features include remote scanner control, WiFi audio streaming, and monitoring in scan mode. It supports both direct WiFi links to the scanner and connections over a local intranet.

### Is the Uniden Siren app free to use?

Yes, the Uniden Siren app is available for free. There are no in-app purchases or advertisements mentioned.

### What scanner models are compatible with this app?

This app is specifically designed to control and monitor the Uniden BCD536HP scanner. Your scanner must be running the latest firmware to ensure compatibility.

### How can I use the Uniden Siren app for mobile applications?

The app is useful for mobile applications by allowing a direct WiFi link to the scanner. This enables you to control and listen to your scanner remotely, even when on the go, provided you have a WiFi connection.

## Version history (last 2 releases)

### 1.1.2 — 2015-05-11

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

Swipe left or right to go to next or previous channels.
Bug fixes

### 1.0.9 — 2015-03-15

No release notes.

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## More apps by Uniden Corporation

- [Uniden Guardian 2](https://appshunter.io/ios/app/uniden-guardian-2/id550882503)
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- [U Guard](https://appshunter.io/ios/app/u-guard/id923961072)
- [Uniden WDVR](https://appshunter.io/ios/app/uniden-wdvr/id967907234)

All apps by Uniden Corporation: https://appshunter.io/developer/514321728

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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 2026-08-16.*