KLed: LED Signboard

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About this app

Perfectly recreating the retro LED vibe.
Customize it just the way you want—from color presets to speed and size control.

Turn your smartphone screen into an LED signboard.

KLed is an app that instantly transforms your entered text into a full-screen, scrolling LED display.
Create eye-catching messages anywhere—events, cafes, parties, studios, solo protests, or cheering at a stadium.

[Key Features]
- Real-time Text Scrolling: Enter any text and watch it scroll smoothly across the screen. Long sentences repeat seamlessly without interruption.
- Dot Matrix Mode: A retro mode that renders text in a dot pattern, just like a real electronic signboard. Perfect for when you need that vintage vibe.
- Glow Mode: Creates a powerful impression with a luminous, neon-like glowing effect. Especially effective in dark spaces.
- 8 Color Presets: Instantly apply color combinations that match your vibe, including Cyan, Red, Yellow, Green, Magenta, White on Blue, Gold on Navy, and Orange.
- Freely Customize Text & Background Colors: Use the color picker to choose your exact colors. Millions of combinations are possible.
- Speed Control: Finely adjust the speed from 20px/s to 400px/s to fit any situation.
- Font Size Control: Adjust font sizes from 40 to 160 to ensure your message is crystal clear even from a distance.
- Play / Pause: Instantly pause or resume playback with a single long-press.
- Screen Always On: The screen won’t turn off while in use, so you don't have to worry during long displays.
- Full-Screen Immersive Mode: Utilizes the entire screen as a signboard, completely hiding the status bar.

[Recommended For]
- Anyone wanting to display today's menu or events at cafes, restaurants, or shops.
- Anyone looking to display congratulatory messages at events, parties, or wedding halls.
- Anyone wanting to use it as a background for concert venues, studios, or broadcasts.
- Anyone looking to deliver a clear message at rallies, cheering events, or solo protests.
- Anyone in need of a retro-vibe prop.
- Anyone looking for a prop for YouTube, TikTok, or Reels video shoots.

[How to Use]
1. Launch the app and tap the screen to open the settings window.
2. Enter your text and tap the checkmark button.
3. Adjust the color, speed, and size just the way you want.
4. Close the settings window, and the LED signboard will start immediately.
5. Long-press the screen to Play / Pause.

Start right now with KLed—the simple yet powerful LED signboard.

What’s new

Fixed bugs!