Can PlungeLab track cold showers?
Yes. PlungeLab tracks cold showers as a distinct session type, alongside cold plunges and open water. You can start a cold shower session on a compatible Apple Watch or add it manually on iPhone afterward. Your history keeps the activity type with the record, so a shower isn’t mislabeled as an ice bath.
This is a native iPhone and Apple Watch app. The website explains the product; it doesn’t run a shower timer or collect your session information.
Two ways to record a cold shower
Capture from Apple Watch
Choose cold shower on the Watch, review your options, and start the session. PlungeLab displays elapsed time and available heart-rate data. You can use a duration you choose or an open-ended session; the app’s timer is a recording tool, not a recommended exposure length.
Cold showers use manual start rather than submersion-triggered automatic capture. A timed session can end at your chosen target, and an open-ended session ends through the deliberate Crown gesture. Splashes do not reliably indicate the beginning or end of a shower.
Log afterward on iPhone
Add a manual session, select cold shower, and enter its date and duration. Temperature, notes, mood, and perceived intensity are optional context. This works without a Watch and without connecting Apple Health.
A manual entry won’t manufacture a heart-rate trace. If you didn’t record or measure something, you can leave it absent and still keep a useful history.
Can Apple Watch measure shower temperature?
Don’t rely on it as a shower thermometer. On supported Apple Watch Ultra hardware, PlungeLab can use water-temperature samples when Apple’s sensor supplies them. Shower readings are best effort: the sensor may not classify the Watch as submerged and may provide no usable measurements.
Manual temperature entry remains available, and a missing temperature doesn’t prevent you from recording the session. Standard Watch capture also works without the Ultra temperature feature. Read the Watch tracking guide for the hardware boundaries.
Cold shower tracking versus ice bath tracking
The recording context is different. A shower’s flow and contact can change throughout the session; an immersion session surrounds more of the body with water. Recording the correct session type helps you avoid treating matching durations as interchangeable experiences.
PlungeLab keeps both in the same history, along with the details you recorded. For immersion sessions, see the cold plunge and ice bath log. These records describe your routine; they don’t establish equivalent effects or medical outcomes.
What can you learn from the history?
You can look back at session dates, duration, available temperature, and your own notes. Optional Pro Insights uses available session and Apple Health observations to describe personal patterns. Missing data or too few observations can prevent a comparison; an absence of a result is not a reason to increase exposure.
PlungeLab doesn’t prescribe shower temperature, exposure length, or a cold-shower challenge. A timer finishing or a streak increasing isn’t a safety signal. Read the Terms and safety information and seek appropriate professional advice about exposure if you have health concerns.
Do I need a subscription or an account?
Core capture and session history are free, with optional Pro purchases for additional analysis. No PlungeLab account is required. Your session history and Apple Health analysis stay on your devices during ordinary app use; see the privacy policy for purchase, website, and support processing.
Questions before downloading? Talk to the team.