Turn any device into an LED banner.
Type a message, choose your colors and font, and light up the crowd at concerts, sporting events, parties, raves, rallies, and fan meet-ups. Your iPhone, iPad, Mac, or Apple TV becomes a bold, glowing display you can hold up anywhere.
A glowing LED-matrix message, in your hand.
Scrolling or static text with a bright dot-grid glow. Dial in dozens of fonts and full color control, then tune the speed, glow, letter spacing, and dot grid until it looks exactly right.
- Dozens of fontsPlus full color control
- Fine tuningSpeed, glow, letter spacing & dot grid
- Photo backgroundsPut any image behind your text
- EffectsRainbow, pulse, flicker, bounce, wave, spotlight & more
Turn the whole screen into a glowing color panel.
Wave it like a lightstick. Choose fandom color presets, custom colors, or bold rally colors, and let the flashlight sync solid, strobe, or pulse to the beat. Setlist mode auto-cycles colors for every song.
- Color presetsFandom, custom & bold rally colors
- Flashlight syncSolid, strobe, or pulse-to-the-beat on iPhone
- Setlist modeAuto-cycle colors for each song
One host lights up the whole section.
Group Mode syncs banners and colors across nearby phones. Everyone scans a QR code to join, and a single host lights up the crowd in perfect step. Then hold it up, prop it on a stand, or cast it to the big screen.
- Group ModeSync banners & colors across nearby phones
- Scan to joinOne QR code brings the whole section in
- iCloud syncYour banners follow you across every device
Export it, sticker it, post it.
Save any banner as a GIF, video, or transparent video for social. And every banner you save automatically becomes an iMessage sticker, ready to drop into any chat.
- ExportGIF, video, or transparent video
- iMessage stickersEvery saved banner, automatically
- EverywhereiPhone, iPad, Mac & Apple TV
No ads. No subscription required.
Just light it up. One Big Screen has no recurring charges and no interruptions. Download it, make it yours, and take it to every show.
- LED banners with dozens of fonts & effects
- Lightstick mode with flashlight beat-sync
- Group Mode & QR join
- GIF, video & sticker export
Questions, answered.
Is there a subscription?
No. One Big Screen is free to download, with an optional one-time Premium purchase. No ads and no subscription required. Download it, and just light it up.
What can I actually make with it?
Scrolling or static LED-matrix banners in dozens of fonts and any color, plus full-screen lightstick panels. Add photo backgrounds and effects like rainbow, pulse, flicker, bounce, wave, and spotlight.
How does Group Mode work?
Group Mode syncs banners and colors across nearby phones. Everyone scans a QR code to join, and one host lights up the whole section together, in step.
Which devices does it run on?
iPhone, iPad, Mac, and Apple TV. Your banners sync across all of them via iCloud, so you can hold it up, prop it on a stand, or cast it to the big screen.
Is it safe for flashing effects?
Strobe, beat-sync, and blink features use rapid flashing light that may affect people with photosensitive epilepsy. Please use those effects with care.
Who is One Big Screen for, and how do I make a banner?
One Big Screen is for anyone who wants a bright message or color to hold up at concerts, sporting events, parties, raves, rallies and fan meet-ups. To make a banner, type a message, choose your colors and font, and hold your screen up.
Turn your phone into an LED sign for a concert · Free full-screen LED banner
Hold it up. Light it up.
Turn any device into a bold, glowing LED banner. No ads, no subscription — just download and go.