Deci Duel

Shout it out! Battle friends 1-on-1 with real-time voice duels, measure your decibels solo, track daily progress, and climb the global leaderboard.

The real voice-volume showdown — DeciDuel!

Shout, measure, and win! DeciDuel is a voice battle game where you compete head-to-head using your phone's microphone to measure decibels (dB) in real time.

■ Real-Time 1v1 Voice Duels

• Challenge friends or get matched with players worldwide
• Compete across 3 rounds — loudest voice wins
• Live waveform visuals and dB readouts keep every round intense

■ Solo Measure Mode

• Shout for 5 seconds to record your personal best dB
• Instantly compare your best, latest, and previous scores
• Practice daily and push past your own limits

■ Voice Diary

• Every measurement is automatically logged to your calendar
• Color-coded dB levels show your daily condition at a glance
• Monthly stats (days recorded, average/highest dB) track your growth

■ Global Leaderboard

• Compete against players around the world
• Climb to #1 and show off your record to friends

■ Quick & Easy Sign-In

• Sign in instantly with Apple, Google, or Kakao
• No complicated setup — start shouting in seconds

Whether you're blowing off steam or hosting a fun party game with friends, DeciDuel turns your voice into the ultimate competition.

Shout it. Measure it. Win it. — DECIDUEL