HotCold
Contrast Therapy & Recovery
Free · In‑App Purchases
Guide every hot-and-cold interval, train with Apple Watch, and turn completed sessions into clear recovery and resilience insights.
Build a consistent contrast-therapy routine with a timer designed for hot and cold sessions.
HotCold keeps every interval simple and visible, whether you are alternating a sauna and cold plunge, taking a contrast shower, or following your own routine. Choose a preset, customise the timing, and let clear visual and audio cues keep you moving.
TRAIN YOUR WAY
• Use Shower, Morning Energy, Sore Muscle, and Deep Sleep presets
• Adjust hot and cold intervals, repetitions, countdown, and finishing phase
• Pause and resume without losing your place
• Receive interval alerts while using other apps
TAKE APPLE WATCH INTO THE SESSION
• Run the timer from your wrist
• Capture heart-rate data during supported sessions
• Keep your iPhone available as a live session monitor
• Sync completed Watch sessions back to your phone
SEE YOUR PROGRESS
• Review completed and interrupted sessions
• Explore hot/cold time, streaks, and completion trends
• Inspect heart-rate response across each cycle
• Export detailed session data when you need it
THERMAL RESILIENCE INSIGHTS
With compatible Apple Watch and Health data, HotCold can present heart-rate recovery, HRV-based trends, a rolling personal baseline, and session-by-session thermal response. These measurements are informational and depend on available sensor data.
HotCold integrates with Apple Health to read relevant workout and heart-rate information. Health access is optional and controlled by you.
Some customisation and insight features require HotCold Premium. Monthly, three-month, and yearly subscriptions renew automatically unless cancelled. A lifetime purchase is also available. Prices are shown before purchase and may vary by region. Manage or cancel subscriptions in your Apple Account settings.
HotCold is not a medical device and does not diagnose, treat, cure, or prevent any condition. Contrast exposure can involve risk. Consult a qualified healthcare professional before beginning a new routine, especially if you have a medical condition.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Meet the new HotCold:
• Thermal Resilience insights and personal HRV baseline
• Detailed hot-to-cold heart-rate response for Watch sessions
• New Shower, Morning Energy, Sore Muscle, and Deep Sleep presets
• Improved Apple Watch session capture and iPhone live monitoring
• Session history, trends, and detailed data export
• HotCold Premium with flexible subscription and lifetime options
The developer, Gil Padro, 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
- Gil Padro
- Size
- 18.2 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later. - Apple Vision
Requires visionOS 26.0 or later. - Apple Watch
Requires watchOS 26.2 or later.
- iPhone
- Languages
English and 19 more
- English, Bulgarian, Catalan, Danish, Dutch, Finnish, French, German, Italian, Japanese, Korean, Lithuanian, Polish, Romanian, Russian, Simplified Chinese, Slovak, Slovenian, Spanish, Swedish
- Age Rating
13+
- 13+
- Infrequent
Medical Treatment information
- In-App Purchases
Yes
- Yearly subscription $24.99
- Subscription Three Months $12.99
- Monthly Subscription $9.99
- Lifetime $29.99
- Copyright
- © 2026 Gil Serra