iOS 17+ · iPhone & iPad

Retro Matrix
in Your Pocket

LED Sign turns your phone into a portable dot-matrix marquee. Type a message, pick a color, go fullscreen — and let the whole venue read you from the back row.

Download on the App Store See it in action

Concert-ready · landscape lock & max brightness
Zero accounts · zero tracking · zero internet
One-time purchase · no subscriptions

Inside the App

Designed for the front row

Every screen is tuned for one thing: getting your message read across a loud, dark, crowded room — without fiddling with settings mid-show.

Home editor with color swatches and text input — Powerful editor Live preview. Every color, every effect, changes as you tap — no render, no save button.

LED matrix rendering of a heart — Classic pixel art Square or round dots. Fine, Classic, Chunky, Arcade densities. The real LED sign look — not a filter.

Giant 'love' with heart emoji in plain mode — Mix text & emoji Full emoji support in both plain and matrix modes. Hearts, flags, faces — they scroll with the text.

Effects panel with glow, blink, font size and motion controls — Intuitive effects Glow halo. Blink strobe. Scroll or fit. One sheet, sliders, instant feedback on the text above.

Saved presets list called My Signs — Save your favorites Build a set for the tour, the birthday, the airport pickup. Tap once, full screen, done.

What's inside

Small app, serious toolkit

Free

Ready to go

Type text, pick a color, tap Play. Landscape locks automatically and brightness ramps to max so your sign is legible under stage lights.

Pro

LED Matrix rendering

Square or round dots, adjustable size and gap, with Fine / Classic / Chunky / Arcade density presets — that authentic dot-matrix look, frame-perfect.

Pro

Effect combinations

Glow halos, blink strobe, scroll / fit motion. Every slider previews in real time — no "render" step, ever.

Pro

Custom colors

Direct hex entry, system color wheel, recent-color history. Pair with a subtitle line for a clean two-line layout.

Free & Pro

Saved presets

Keep your best signs a tap away — 1 slot on Free, unlimited on Pro. Each preset restores text, color, effects, everything.

Privacy

Fully offline

No accounts, no uploads, no analytics SDKs. Payments go through Apple's StoreKit; the rest of the app never touches the network.

In the wild

Made for loud, bright moments

🎤Concerts & festivals — hold up lyrics, band names, song requests

🎓Graduations — the name that everyone can read from the back

🛬Airport pickups — a real sign for a real arrival

🎂Birthdays & surprises — scrolling "HAPPY BIRTHDAY"

💍Proposals & anniversaries — the two lines that matter

⚽️Stadiums & game nights — team chants, scores, go-to roars

🪧Rallies & gatherings — a clear, repeatable message

🏷️Pop-up storefronts — a working window sign, built in minutes

Pricing

One payment. Yours forever.

PRO

Lifetime Unlock

One-time purchase · price varies by region · no subscriptions

LED Matrix retro rendering
Full effects: Glow, Blink, Fit, Scroll
Custom colors & recent palette
Subtitle line for two-line layouts
Unlimited saved presets
Every future Pro feature included

Unlock on the App Store

Free tier is fully usable — Pro only unlocks the power tools.

Your phone is already in your hand.
Make it a sign.

Download on the App Store

iOS 17+ · iPhone & iPad · Dark Mode exclusive

Retro Matrixin Your Pocket