The Apple Watch app for cold plunges and ice baths.
Your phone shouldn't be near water. TrackCold runs standalone on Apple Watch — start the ritual from your wrist, feel haptic phase transitions, leave the iPhone dry on the deck. Sessions sync via iCloud when both devices are online.
02:30
Round 2 of 4
Why the wrist
Your phone shouldn't be near water.
The cold plunge ritual is wet, slow, and fingers-numb. Reaching for an iPhone with frozen hands — if you can find it, if you can unlock it, if you didn't drop it — is the friction that ends most practices. The Watch is already on your wrist. It already survives a polar plunge. That's where the timer should live.
Standalone — no iPhone required
Tap the complication, pick a ritual, start the timer. Your phone can stay in the warm car. Sessions sync to iPhone via iCloud the next time both are online.
Haptic phase transitions
A wrist tap tells you when the cold phase is up. No screen-staring, no audio over wind. Eyes closed, breathing slow, attention on the body.
Always-On display
The timer face stays visible mid-session at low power. Lift-to-wake works too — but the Always-On view means you don't have to.
Complications + Smart Stack
Pin TrackCold to your watch face for one-tap starts. Smart Stack widget surfaces it before your usual plunge time.
How it works on watchOS
The full ritual, on your wrist.
Start from a complication
Pin TrackCold to your watch face. One tap launches the ritual picker. Pick a saved Ritual or start fresh — the whole flow is wrist-native.
Feel every phase change
Strong haptic taps at the start of each cold phase, the start of each hot phase, and the end of the session. Different patterns so you can tell them apart without looking.
Multi-round, watch-native
Run the same multi-round contrast protocols from the Watch. The face shows current round, current phase, and time remaining — at a glance, low-power.
Apple Health sync
Sessions write to Apple Health as Mindful Minutes + Other workouts. Recovery context flows into your daily activity ring.
iCloud sync to iPhone
Your Saga (history) updates on both devices. Start a session on the Watch, review it on the iPhone later — same data, encrypted in your iCloud.
Apple Watch Ultra ready
Stronger haptics, deeper water resistance, brighter Always-On display. The Ultra is the ideal Watch for cold practice — and TrackCold takes advantage of it.
Compared
vs the alternatives.
| Feature | TrackCold (Watch) | Phone-only timer | Garmin / other ecosystems | No tracking |
|---|---|---|---|---|
| Standalone on wrist (no phone needed) | ||||
| Cold-specific haptic phase cues | ||||
| Always-On display optimized | ||||
| Apple Health (HealthKit) sync | ||||
| Multi-round contrast on Watch | ||||
| Complications + Smart Stack | ||||
| iCloud sync between iPhone + Watch | ||||
| Native to Apple ecosystem | ||||
| Privacy: zero third-party SDKs |
Wrist protocols
Three sessions to start with — all wrist-led.
Save any of these as a Ritual on your iPhone and they appear on the Watch face complication for one-tap starts.
Open-water plunge
Single-phase 2–4 minute timer with a 30-second warmup countdown. Ultra-friendly. Great for lake or sea.
Health benefits →Sauna ↔ ice contrast
Multi-round mode with 12-min hot, 2-min cold phases × 4. Haptic transitions handle the switching.
Cold plunge timer →Daily cold shower
60-second cold shower as part of the Awakening 7-day quest. Set the watch on the bathroom counter.
Plunge tracker →FAQ
Watch questions, answered.
Coming soon to the App Store.
Free to download. The Apple Watch app is part of Asgard premium — 7-day free trial included.
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