Contrast - Sauna + Cold Plunge
Contrast Therapy Timer
Only for iPhone
Free · Designed for iPhone
iPhone
Start your contrast therapy session in under 5 seconds. No accounts. No subscriptions. Just tap and go.
Contrast is the purpose-built timer for sauna and cold plunge practitioners. Whether you follow a Huberman protocol, Wim Hof method, or your own custom routine, Contrast keeps you on track with large, glanceable timers and automatic HealthKit integration.
SIMPLE SESSION TIMING
Tap Sauna or Cold Plunge from the home screen and your timer starts immediately. The large 96pt display is readable from across the room -- even through steam. End your session with a single tap and everything is saved automatically.
SMART CONTRAST PROTOCOLS
Choose from preset multi-phase plans or build your own:
- Quick Contrast: 15min sauna + 2min cold (17 min)
- Standard Protocol: Two rounds of sauna and cold plunge (36 min)
- Extended Session: Three full rounds for deep practice (54 min)
Plans auto-advance between phases with audio and haptic alerts so you never lose track of where you are.
AUTOMATIC HEALTH TRACKING
Every session saves to Apple Health as a Mind & Body workout with duration and estimated calories. Your contrast therapy practice appears alongside all your other health data with zero manual entry.
DESIGNED FOR WET HANDS
Giant touch targets, high-contrast colors, and no precision gestures required. Contrast works the way you actually practice -- sweaty hands and all.
SESSION HISTORY & PERSONAL RECORDS
Track every session, see your progress over time, and hit new personal records. All your data stays on your device, private by default.
WHAT'S INCLUDED
- Single-tap sauna and cold plunge timers
- Preset and custom multi-phase contrast protocols
- Automatic HealthKit workout sync
- Audio and haptic phase alerts
- Session history with personal records
- Dark mode support
- Screen stays awake during sessions
No accounts. No subscriptions. No tracking. Just a focused tool for your contrast therapy practice.
Ratings & Reviews
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Updated developer website URL.
The developer, Matthew Strickland, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Matthew Strickland
- Size
- 6.3 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 26.2 or later.
- iPhone
Requires iOS 26.2 or later. - Mac
Requires macOS 26.2 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.2 or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- Copyright
- © 2026 Idle Fusion