Set your target cold exposure duration and start the countdown. An optional halfway chime and a completion beep keep you on track without checking your phone.
Calculated on your device. Nothing is uploaded or stored on a server.
Pick a preset or enter your own minutes and seconds, then select Start. The countdown fills the progress bar and, if enabled, plays a soft chime at the halfway point plus a completion beep when time is up.
Cold water immersion and cold showers are commonly practiced in short, timed sessions rather than open-ended exposure. A visible countdown and audible cues let you stay focused on your breathing without needing to watch a clock, and having a fixed, pre-committed duration can help you resist the urge to bail out early — or overstay past a sensible limit.
Many people begin with 30–60 seconds and gradually work up to longer sessions as tolerance builds, rather than jumping straight to several minutes.
Numbness, uncontrollable shivering, or difficulty breathing are signs to end a session immediately, regardless of the timer.
Common questions, answered.
There's no single right answer, but many people start with short sessions of 30 seconds to 2 minutes and gradually increase duration over time as tolerance builds.
If enabled, it plays a short tone when the countdown reaches the midpoint of your set duration, giving you a time cue without needing to look at the screen.
No. People with cardiovascular conditions, Raynaud's phenomenon, or other health concerns should consult a doctor before trying cold immersion, and nobody should plunge alone in open water.
Yes, the countdown uses your device's clock and continues running in the background, though browser tab throttling on some devices may cause slight display delays.