Type it. Hold it up.
A scrolling LED sign on your whole screen, at full brightness, in the colors of a real board. Occasion phrases for the stadium, the concert, the airport and the party are one tap away.
One banner across your crew
Line up 2 to 4 phones. One phone hosts, the others join. The letters run straight across the gaps between the screens.
No account and no server. Phones talk to each other over your local network.

Spell it out
Each phone holds one letter. G, O, A, L, four friends in a row.

Glow and Beat
A glow stick in your hand, steady or pulsing. Beat listens for the music and flashes with it. Sound is never recorded or saved.


Flash code
Type the same 6 characters on any number of phones and they all run the same light show, with no need to connect to each other.
Kind to eyes
Flashing is held to 3 flashes a second at most. A warning comes first. With Reduce Motion or Dim Flashing Lights on, flashing becomes a slow color change.
Your words stay with you
No account, no ads, no tracking. Saved banners stay on your device.
Rallyglow Pro
Rallyglow Pro adds:
- 4 devices
- Beat
- Dot styles and Rainbow
- All occasions
- Unlimited saves
- GIF
Joining a crew never needs Pro.



