BeatLit
Turn your feelings into light — cheers, confessions, letters
BeatLit turns your phone into a glowing LED fan sign on concert day. Effects hit on every beat, the microphone lets it react to the music around you, and making, playing and sharing all work with no internet — even in a packed arena with zero bars. Use it for cheers, and for proposals, confessions and letters too.
Effects that hit the beat
Tap the tempo and BeatLit locks onto the song’s BPM. Eight beat effects — pulse, shockwave, equalizer and more — fire on every beat, and one-tap presets change the whole look.
React to sound
The microphone listens to the bass of the music around you and keeps time. It runs only while the switch is on, and audio is never recorded, stored or sent.
Share by QR, offline
Your whole banner fits in one QR code. A friend scans it and gets the same banner with no server, no account and no sign-in.
Venue mode
Full brightness and a screen that stays on. If the phone heats up, quality drops automatically so it lasts all show. Flashing effects are off by default.
40+ templates and customisation
15 text animations, 8 lettering styles, 9 fonts, 6 lightstick characters, aurora and starfield backgrounds, and heart and star particles.
Crew mode (beta)
Many phones act like one card display. When the leader taps “Next”, scenes change together on nearby phones over Bluetooth.
The app is available in Korean, English, Japanese, Simplified Chinese, Spanish, Indonesian and Thai. The text you put on a banner can be in any language.
- Camera, microphone and Bluetooth permissions are requested only when you use the feature that needs them (QR scan, react to sound, crew mode).
- Basic effects are free. Effects marked ✦ can be used by watching an ad, or with BeatLit PLUS (lifetime) or a 24-hour pass.
- Ads appear only on the home screen, right after saving, and in the “watch an ad to use” option you choose — never in play, share or crew screens.
- Phone-screen rules differ by venue. Please be considerate and keep other people’s view clear.
BeatLit is developed and operated by Byeoltieum, a counseling and education institute. For questions about the app or privacy, use the contact page or write to contact@mindstartium.com.
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