Updated Jul 15, 2026 Ā· v1.4
Hands-free boxing/BJJ timer - clap to start, pause & reset. No touch needed!
š ClapTimer - The Hands-Free Round Timer for Combat Sports & CrossFit Tired of touching your phone with sweaty gloves? ClapTimer uses AI-powered clap detection to control your round timer completely hands-free. Just clap once to start or pause, clap twice to reset. It's that simple. š„ PERFECT FOR: ⢠Boxing training ⢠Brazilian Jiu-Jitsu (BJJ) drilling ⢠Muay Thai rounds ⢠CrossFit intervals & EMOM workouts ⢠Wrestling practice ⢠MMA conditioning ⢠Tabata & HIIT training ⢠Any sport that uses round timers ā±ļø HOW IT WORKS: ⢠š 1 Clap ā Start or Pause the timer ⢠šš 2 Claps ā Reset the current round ⢠No need to touch your phone during training! šÆ KEY FEATURES: ā AI-Powered Clap Detection Uses Google's YAMNet machine learning model running entirely on your device to accurately distinguish claps from speech, music, and background noise. No internet required for detection. ā Fully Configurable Timer ⢠Set round length (minutes or seconds) ⢠Set rest duration ⢠Set total number of rounds ⢠Configure warning countdown (with sound alert before round/rest ends) ⢠Tap any value to type it directly ā Audio Feedback ⢠Boxing bell sound at round start and end ⢠Countdown beep warning before time runs out ⢠Voice announcements: "Round started", "Round paused", "Round over. Rest." ⢠Sound on/off toggle for silent training ⢠Voice language matches your device language ā Works in Background ⢠Keeps listening for claps with screen off ⢠Foreground service with notification ⢠Stop button in notification ⢠Auto-stops after 60 minutes of inactivity to save battery ā Adjustable Sensitivity ⢠Slider to fine-tune clap detection sensitivity ⢠Default set to 90% (highly reactive) ⢠Lower it if you get false positives in noisy environments ā Clean, Dark UI ⢠Large, readable timer display ⢠Auto-sizing text fits any screen ⢠Round/Rest phase clearly indicated with colors ⢠Works in any screen orientation š PRIVACY FIRST: ⢠NO audio is ever recorded, stored, or sent anywhere ⢠All audio processing happens locally on your device ⢠No account needed, no tracking, no data collection ⢠Microphone only active when the listening service is running š” TIPS FOR BEST RESULTS: ⢠Clap loudly and sharply for best detection ⢠If playing music, use headphones or a Bluetooth speaker (device speakers can interfere with the microphone) ⢠Adjust sensitivity slider if needed for your environment ⢠The app works best in environments without constant loud clapping/banging sounds š AVAILABLE IN 15 LANGUAGES: English, Portuguese (Brazil), Spanish, French, German, Italian, Russian, Japanese, Korean, Simplified Chinese, Traditional Chinese, Arabic, Hindi, Turkish, Indonesian š± REQUIREMENTS: ⢠Android 10 or higher ⢠Microphone permission (for clap detection only) Train harder, train smarter ā let ClapTimer handle the clock while you focus on your workout! š„š„šŖ
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