Turn your device in to a squad car siren box for 99¢, just 0.1% of the cost of a real one!

The Simple Siren LMT is modeled after a real system and behaves the same way! The siren unit design creates a realistic siren experience, perfect for pranking your friends or turning your car into a real emergency vehicle!

-Wail Siren
-Yelp Siren
-Pier Siren
-Manual Siren

Buttons light up as the real sirens do

Realistic look to have fun with sirens!

~Don't forget to unmute iPhone when using this app!~
~Also note that some sirens are copy-written and therefore won't be able to be presented through this application~

What’s New

Version 3.2.1

Squashed some bugs for a better year.

Enjoy and please submit feedback and leave a rating! We read them all.

Ratings and Reviews

4.5 out of 5
130 Ratings

130 Ratings

NRO88 ,

Awesome siren box, would be awesome with a rumbler.

When I first saw this app, I was so excited. I was elated that my favorite siren box got made into an app. I have a few request that I’m my opinion, would greatly improve this app. Please add a rumbler unit application, that you can turn on and off. Also, please either change, or add another manual function, that has more of a wind down. I don’t know the exact function name, but the one where the manual completely winds down. Edit : I read in the description that he will not add a rumbler due to copy right, but I wonder if he could change it to a slightly different frequency than the copyrighted one. A rumbler added would be amazing.

Riley12345678901234 ,

100% the real thing.

The siren apps made by this developer are nothing less than perfect. For those that complain about it not winding down when you switch to standby or manual, deal with it, cause it's never going to change. The actual siren that this app was modeled after was made that way. I have this siren in my car, and have always loved it. Spot on, great job!

ToBeAnnounced_YT ,

Review Regarding Rumbler Option Implementation

Hello there reviewers of this sirenbox application! This siren application is almost complete. I would love it if you would add an update, specifically speaking to implement the “rumbler” option used in the New York Police Department. You know, I’m just saying. You don’t have to, but it would be more realistic if you could add that option by pressing “rumbler” just as the other buttons regularly. Thank you for reading this constructive criticism comment.
Edition: Hello Jacob. I’ve noticed the description and it states that it’s copy-righted, but this was years ago. Even “OuttaMyWay!”’s multiple sirens application has the Rumbler tones in it. So, please, I’m just asking like all the others do, please implement this option. Thank you.

Developer Response ,

Hey there, after speaking with the company that owns the copyright, I am unable to keep it in. Sorry, believe me, I wish I could!

App Privacy

The developer, Jacob Simon, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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