ThermaForge: Cold & Heat Log
Ice bath & sauna tracking
Free · Designed for iPad. Not verified for macOS.
Track cold sessions on Apple Watch and log heat sessions on iPhone with clean, precise data for temperature, duration, heart rate, and consistency over time.
Track cold sessions on Apple Watch. Log heat sessions on iPhone.
ThermaForge helps you record ice baths, cold exposure, and sauna sessions with precise time, temperature, and heart rate data in one clean workflow.
Designed for simplicity and accuracy, it makes it easy to track your routine, review your history, and stay consistent over time.
KEY FEATURES
• Start and track cold sessions on Apple Watch
• Log sauna and heat sessions on iPhone
• Record duration, temperature, and heart rate
• View simple, clear session summaries
• Add, edit, and review sessions over time
• Sync with Apple Health
PRIVATE BY DESIGN
Your data stays on your device and in Apple Health.
No accounts. No tracking. No ads.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Added feedback on completed cold plunge sessions to provide a clearer summary after each session.
The developer, Tim Doyle, 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 Linked to You
The following data may be collected but it is not linked to your identity:
- Health & Fitness
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Tim Doyle
- Size
- 8.9 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 26.4 or later.
- iPhone
Requires iOS 26.4 or later. - iPad
Requires iPadOS 26.4 or later. - Mac
Requires macOS 26.4 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.4 or later. - Apple Watch
Requires watchOS 26.4 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Forge Human