C-L1 Interval Timer

C-L1 Interval Timer is a focused workout timer for HIIT, Tabata, and circuit training. Quickly build custom work and rest intervals, stack rounds and sets, and add warm-up or cool-down for a complete session. Clear audio and vibration cues keep you on pace so you can train without constantly checking your phone. Ideal for gym, home workouts, running intervals, and boxing rounds. Core features - Customizable work, rest, rounds, sets, warm-up, and cool-down - Presets for HIIT, Tabata, EMOM, and circuit training - Loud audio cues, voice prompts, and vibration with color-coded phases - One-tap start, background running, and quick repeat for back-to-back sessions Great for users seeking a reliable interval timer app, HIIT timer, Tabata timer, and workout timer with fast setup and clear signals.

1) Download and open the app, then grant notification and audio permissions so cues play reliably during workouts. 2) Create a timer: set warm-up, work time, rest time, number of rounds, sets, and optional cool-down. 3) Choose alerts: enable beeps or voice prompts, set vibration, pick colors, and adjust volume to fit your environment. 4) Start your workout: follow the on-screen countdown and audio cues; the timer continues to run in the background so you can lock the screen or switch apps. 5) Save as a preset for next time; duplicate and edit to quickly build timers for different routines like Tabata, EMOM, or sprints.