The best cold heat apps on iPhone average 4.1★ across 110+ titles — we've ranked them by what real users actually keep on their phones. Updated July 2026.
This app helps you track your cold water immersion sessions, including duration, water temperature, and heart rate. It provides a calendar view of your progress and allows you to add notes about your experience. Synchronizes with Apple Health for a comprehensive health overview.
This app helps you track various contrast therapy sessions like cold plunges, saunas, and red light therapy. Monitor your progress, connect with a community, and participate in challenges to improve resilience and recovery.
Explore the history of World War I, a pivotal global conflict. Understand the causes, major belligerents, and devastating impact of this historical event. Learn about peace and conflict studies, pacifism, and the academic approaches to understanding war and its resolution.