IntervalTimer

About IntervalTimer

A loud, simple interval timer for HIIT, Tabata, EMOM and any work/rest routine.

• Built-in Tabata, HIIT 40/20, EMOM, Sprint and Stretch presets
• Prepare / work / rest phases with a big progress ring and countdown
• Distinct beeps for work, rest and finish, plus a 3-2-1 countdown tick
• Vibration feedback and optional keep-screen-on while training
• Skip a phase, pause and resume, drift-free timing that survives tab switches
• Completed sessions logged with rounds and duration

内置 Tabata、HIIT、EMOM 等预设，准备/运动/休息三阶段大圆环倒计时，运动、休息、结束各有独立提示音，最后 3 秒滴答提醒；支持震动、屏幕常亮、跳过与暂停恢复，完成自动记录训练历史。