PartyGlow turns your iPhone's real flashlight into a beat-synced strobe, your screen into a 60fps visual canvas, and your friend group into a wireless light show — all reacting to music in real time.
No gimmicks. Real hardware flashlight control.
Each mode uses different hardware to create a unique experience.
Your rear flashlight fires on every beat — a real strobe synced to bass drops and kicks. Adaptive detection with 100ms cooldown prevents false triggers.
Flashlight brightness smoothly tracks audio amplitude from 0–100%. Quiet moments dim, loud moments blaze. Creates a living, breathing light.
Your entire screen becomes a pulsing glow using iOS Extended Dynamic Range — brighter than any normal app can achieve. Wave your phone like a concert glow stick.
Load your own music files, or switch to live microphone mode to react to concerts, DJ sets, or any sound around you. Adjustable sensitivity (0.5x–2.0x) adapts to any environment.
Blob, Waveform, Spectrum, Particles, Mandala, Lightning, Kaleidoscope, Terrain, Orbits, and DNA Helix — all rendered at 60fps on SwiftUI Canvas, reacting to both amplitude and beat.
Sub-band FFT analysis isolates bass (60–130 Hz) and midrange (301–750 Hz). Variance-adaptive thresholds adjust to each song's dynamics. Real-time BPM estimation (40–220 range).
Connect friends' iPhones via Multipeer or Bluetooth — no internet needed. One host controls the music; every device flashes in sync with sub-80ms drift correction.
Neon, Sunset, Ocean, Aurora, Fire, Candy, Forest, Cosmic, Cyber, Lava — switch instantly without stopping the music. Every palette transforms visualizers, glow, and UI.
Full localization in English, 简体中文, Español, and العربية with native right-to-left layout. Your phone, your language.
Hand your friends their phones. Create a party room. Press play. Every iPhone in the room flashes and glows together — perfectly synchronized to the same beat, the same drop, the same moment. No WiFi router needed. No app accounts. Just music and light.
PartyGlow is coming soon to the App Store.
Zero ads. Zero tracking. Pure music and light.