CoolLED1248 vs U
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CoolLED1248
Transform your device into a dynamic display for advertising and information. Easily change text, utilize rich templates, and access a library of pre-made materials for various commercial and personal uses. Supports multiple programs, regions, and real-time data like time and scoreboards.
- One-click word change
- Rich text, templates, and borders
- Built-in commercial advertisements
- Supports multiple programs and regions
- Time, date, and scoreboard functions
- Versatile scene applications
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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, borders, and multi-line effects. [Various materials] Built-in commercial advertisements, demon eyes, driving, festivals and other materials are waiting for you to unlock. [Multiple functions] Not only supports multiple programs and multiple regions, but also supports time, date, scoreboard, stopwatch and other functions. [Various scenes] Various scenes such as windows, cars, mobile stalls, door heads, etc. are available to meet different needs.
U
Control magic lights and lamps with this Bluetooth controller. Offers IC point settings, over 200 built-in effects, and music rhythm synchronization. Supports both Chinese and English languages for a user-friendly experience.
- Bluetooth control for lights
- Customizable IC points
- Over 200 built-in effects
- Music rhythm synchronization
- Infrared remote control support
- Simple interface
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U-light is a professional bluetooth controller for controlling magic lights and lamps. Support Chinese and English two languages. IC points can be set, and there are more than 200 built-in rich mode effects for users to choose from. The interface is simple to operate, and it can also be controlled by infrared remote control, making your operation more convenient and flexible. The external high-sensitivity rhythm effect can change the gorgeous running effect through the music rhythm light strip.
Screenshots
Verdict
The clearest difference is review sentiment: U at 100% against CoolLED1248's 39%. U also leads on rating (3.7 vs 3.2) and iOS requirement (10.0 vs 15.6). CoolLED1248's advantage is ratings volume (248 vs 3). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
U holds the better App Store score, 3.7 against 3.2. That said, the two scores are not equally well evidenced: CoolLED1248 has 248 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 39% of CoolLED1248's written reviews are positive against 100% of U's.
CoolLED1248 ships an update monthly, U every 3 weeks. The most recent releases landed on October 17, 2026 and October 3, 2026 respectively.
| Parameter | CoolLED1248 | U |
|---|---|---|
| Price | Free | Free |
| Rating | 3.2 (248 ratings) | 3.7 (3 ratings) — better |
| Positive reviews | 38.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 248 — better | 3 |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 10.0 — better |
| Further details — not scored | ||
| Size | 370 MB | 7 MB |
| Age rating | 17+ | 4+ |
| Developer | 玲玉 代 | Shenzhen Yamei Yunchuang Intelligence Technology Co.,Ltd. |
Customer experience
CoolLED1248
U
Bugs and requests
CoolLED1248
Reported bugs
5 issues- Music playback issues due to copyright restrictions
- Text input and editing problems
- Inconsistent behavior when switching between app and other apps
- Randomly losing saved content after updates
- Compatibility issues with newer iOS versions
Requested features
11 requests- Ability to share or download user-created designs
- More color options
- Ability to combine text and graphics
- Playlist mode for cycling through saved messages
- Landscape mode support for iPad
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- Import/export functionality for animations and graphics
- Ability to schedule messages or set automatic rotations
- Live clock or timer display
- More emoji support
- Font customization options
- Undo/redo functionality
U
Not enough reviews yet to summarise bugs or requests.
In-app purchases
CoolLED1248
No in-app purchases
U
No in-app purchases
