CoolLED1248

3.7
1.9K reviews
100K+
Downloads
Content rating
Everyone
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About this app

Redefine the display screen form, subvert the traditional LED display screen, and choose from a variety of display screens.
[One-click word change]
Change the word on the phone, a magic tool for advertising. Rich text, templates, and border effects.
[Various materials]
Devil's eye, driving, festivals and other super materials are waiting for you to unlock. Built-in commercial advertisements,
[Multiple functions]
Not only supports multiple programs and multiple regions, but also supports animation, graffiti and other functions.
[Various scenes]
Various scenes such as windows, cars, mobile stalls, door heads, etc. are available to meet different needs.
Updated on
Apr 8, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection

Ratings and reviews

3.7
1.83K reviews
Dave Gombert
March 30, 2026
So discouraged. I used this app as the recommended solution for an LED hat I purchased. Works great and was able to control it, add custom logos that look great even though I'm not a great artist. Impressed a bunch of people at a major event. But tonight, my hours of effort into the animations is all gone. Whether it was a space issue on my phone or a recent update, I don't know but all animations, graffiti and programs are gone and have to be recreated from scratch. Very sad.
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yfxiong
March 31, 2026
can you describe in detail? my email is xiongyufeng7@gmail.com we discuss in detail. can you tell me the device name showed in the app's device page? and how the problem happened.
Brooke Ann
December 9, 2025
App is decent for what it is. Sometimes apps used with third party products on Amazon can be iffy, sometimes don't work the greatest, and you can just tell they were put together quickly. But this app actually has a pretty good variety of graphics to change your LED sign. Works as it should, haven't had any issues with it. Updated with new graphics since using. I do wish it were easier to add own graphics. It can be done but it takes some work to get images to look nice.
1 person found this review helpful
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yfxiong
December 22, 2025
Thank you for your advice,I have report your needs to my team.
Travis Goodwin
July 7, 2020
If you're using an early model Pixel, don't bother. The app doesn't work even with location sharing on. You can connect immediately after installing the app, but never again. It will see the device but not connect to it. Usually is just crashes. I've upped my review to 2 stars to reflect that the app does work flawlessly on Apple devices, I'm just not so lucky with the Android app.
7 people found this review helpful
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yfxiong
July 7, 2020
I will check the problem you found

What’s new

Emergency fix for the issue of the text input box being obscured.