Your iPhone becomes a handheld LED sign — and a megaphone.
GlowVox scrolls giant glowing text across the screen and, when you want it to, shouts that text out loud on a loop. Night market, concert crowd, airport arrivals, a proposal after dark: hold it up and people see you from the other end of the street.
WHAT IT DOES
• Full LED engine. Three marquee lanes, glitch, typewriter, strobe, neon glow, gradient shimmer, per-character colors and mic-reactive beats — with a built-in photosensitivity guard on the fast flashing.
• Say it out loud. Text-to-speech loops your wording with sweet, deep or cartoon voice effects, or loops your own recording, with up to +6 dB of outdoor gain for a Bluetooth speaker.
• Background music and photos that know their place. Loop a track behind the sign — the instant your shout-out starts the music ducks out of the way, then fades back when you stop — or crossfade up to 9 background photos in Ambience.
• Photo to LED dot matrix. Bright pixels become lamps, dark ones stay black — pets, logos and idol photos all light up.
• Lock Screen sign. A Live Activity keeps it on the Lock Screen and Dynamic Island, so the screen stays cheap on battery and you still never miss them.
• Ready-made templates across six scenes: market stalls, fan chants, proposals, parties, airport pickups and everyday utility signs like queue numbers and parking.
• Live variables & countdown. Put {time} or {date} in the text, or add a live countdown that ticks down days, hours, minutes and seconds in real time.
• Fan-color glowstick. One tap turns the whole screen into your idol's color, pulsing in rhythm, with the name on top in high contrast.
• Fill-in templates. Change the name or price and go; no rewriting the whole sign.
• Landscape, upside-down and mirror modes, adjustable font, size, speed and blinking, and a searchable color library.
• Hold-up lock. Freeze rotation and gestures while you hold the phone overhead, so nothing flips or pauses by accident.
• Built for long shifts. Long Display Mode lowers the frame rate or switches to a clear still sign with burn-in protection, and the app suggests it when the phone runs hot or Low Power Mode is on.
• Flashlight: steady, strobe, SOS, or brightness that responds to live sound picked up by the microphone.
• Sync several phones — or combine them into one big sign. Nearby phones show the same sign in step, line up side by side as one wide banner, or become a remote (plus an Apple Watch remote on your wrist): pause, next sign, brightness and one-tap shout.
• Siri shortcuts jump straight into stall or cheer mode, a Home Screen widget relights your last sign, and one tap resumes your last playlist.
• Export and share as GIF, video (720p/1080p MP4 at 30 fps with voice and background music) or screen recording — and export any recording as MP3.
• Stop timer at 15/30/60/120 minutes, plus a low-battery prompt that offers a black-screen mode: the display turns black and dims while the shout-out continues. Keep the app in the foreground; locking the screen or switching apps stops the audio.
PRIVACY, PLAINLY
No developer servers. No data collection. No ads and no analytics SDKs. Keep saved signs, recordings, images and background music in your iCloud and sync them across devices using the same Apple Account. Editing drafts, playback state and device settings stay on this device.
It is a one-time purchase: no subscription, no ads. The in-app purchase covers the full template, effect and motion library, text-to-speech and recording loops, background music, photo signs, GIF / video / screen-recording export, hosting a multi-phone sync, saving more than 3 signs, and playback without the watermark. Free users can preview a text-to-speech shout 3 times a day.
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