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LED Banner

How to make your iPhone look like an LED sign or neon display

In LED Banner, open the LED panel and choose Classic under LED Style: your text turns into a grid of round glowing dots, like a real LED board. Then set the dot size with Pixel Size and LED Spacing, and pick a color such as Retro LED, Matrix or Neon.

3 min read · Updated 2026-09-16

The dot grid is what makes it look like a real LED board

A real LED sign is a panel of separate lights with dark gaps between them. LED Banner draws the same thing on your screen: it lays a grid over your text and lights a round dot in every cell that the letters cover. Zoom into a photo of a bus-stop display and you will see the same grid; this app just draws it in software. Everything outside the letters stays dark.

Get the LED look, step by step

  1. Open a banner, or tap New Banner on the Create tab.
  2. Tap LED and pick Classic under LED Style. None switches the dots off and shows plain text.
  3. Drag Pixel Size (1 to 20 pt, 4 by default) to set how big each dot is.
  4. Drag LED Spacing (0 to 12 pt, 2 by default) to set the dark gap between dots.
  5. Use Glow (0 to 1) for a wider halo around each dot, and Brightness to dim the text if you need to.
  6. Tap Color and choose a Color Mode, then tap Full Screen.

How big should the dots be?

Each dot sits in a square cell that is Pixel Size plus LED Spacing wide. Dividing the screen by the cell tells you how many dots fit. On a 6.1-inch iPhone in landscape (852 by 393 pt):

LED grid on an 852 x 393 pt screen
Pixel Size / LED SpacingCellDots acrossDot rows
4 / 2 (default)6 pt14265.5
8 / 412 pt7132.8
12 / 012 pt7132.8

Small dots, like the default, keep letters smooth and detailed. Bigger cells make a chunkier, more retro sign that is closer to a real street display; with LED Spacing at 0 the dots touch and the gaps almost disappear. With big dots, raise Size in Text so each letter still covers enough of them to be readable.

Which color mode looks like LED or neon?

  • Retro LED: classic orange, like a station or shop board.
  • Matrix: bright green, the computer-terminal look.
  • Neon: magenta, closest to a neon tube sign. Cyberpunk mode gives cyan instead.
  • Gold and Ice: warm yellow and cold light blue.
  • Rainbow: the text cycles through every color, a full round every 4 seconds.
  • Solid: one color you choose from 10 Quick Colors. The full color picker is part of LED Banner Pro.

In the free version, 9 of the 12 color modes are available. Gradient, Fire and Police are part of LED Banner Pro.

What about the other LED styles?

Classic is free. Round, Square, Pixel and Glow are part of LED Banner Pro. To be straight with you: every style draws round dots, and Round currently looks the same as Classic. Square is round dots without the glow halo, Pixel uses dots of at least 6 pt with 1 pt gaps and no glow, and Glow doubles the halo and adds a blur set by the Bloom slider. Bloom has no effect on the other styles.

The Effects panel adds extra looks on top, such as CRT, Scanlines and Mirror. These are part of LED Banner Pro too.

What this app is not

LED Banner shows the sign live on your iPhone or iPad. It cannot export an image, GIF or video of the LED text, and it cannot send it to a TV or a real LED panel. If you need an LED text effect for a graphic or a video, use a design tool instead.

Questions and answers

Is there a free LED sign app for iPhone?
LED Banner is free to download, and the free version includes the Classic LED dots with every LED slider, 9 of the 12 color modes and scrolling. It has ads; LED Banner Pro removes them.
Can I make the dots square?
No. Every LED style in LED Banner draws round dots, including Square and Pixel. You can make them touch by setting LED Spacing to 0.
Why does Brightness not make the sign brighter?
Brightness can only dim the text, from its full level down. The full-screen sign already sets your screen to maximum brightness, and no app can go beyond that.
Does it work on iPad?
Yes. The same LED look works on iPad, and a bigger screen fits more dots across.

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