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LED Flow: Scroller, Banner

Welcome to the official documentation for LED Flow, an app that turns your phone's screen into a glowing, scrolling LED banner.

What is LED Flow?

LED Flow displays any message you type as a full-screen, scrolling dot-matrix display styled to look like a real LED sign. Hold it up at a concert, use it as a name sign, put it in a shop window, or just show a glowing message on your desk.

Key Features

  • Full-screen LED display - your message scrolls edge to edge in landscape, and can stay on screen even where the display would normally lock
  • Deep customisation - font, text colour, background colour, LED dot pattern, dot size and gap, text size, and scroll speed and direction
  • Blink and mirror effects - blink the message on and off, or mirror it so it reads correctly through glass or a mirror
  • High Quality Mode - an optional pixel-by-pixel rendering mode with a glow effect around each dot
  • Share as GIF - turn your scrolling message into an animated GIF and share it anywhere
  • History - your last 100 messages are saved on your device so you can reuse them
  • OLED burn-in protection - periodically nudges the display to reduce the risk of screen burn-in
  • 19 languages

Free and Pro

The free version includes a selection of fonts, colours and one LED dot pattern, with ads. LED Flow Pro unlocks every font, colour and dot pattern, removes the watermark from shared GIFs, and removes ads. See Free and Pro in the User Guide for the full breakdown.

Quick Start

  1. Install LED Flow from Google Play
  2. Type your message under LED Flow Text on the Look & Feel tab
  3. Style it - pick a font, colours, dot pattern and scroll settings
  4. Tap Start to show it full-screen
  5. Tap Share to save it as a GIF, or double-tap the display to exit

Requirements

  • Android 7.0 or later

LED Flow asks for one optional permission during setup (notifications, on Android 13 and later). See the Privacy Policy for details.

Documentation

Support

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