Furolog

Furolog turns your Apple Watch into a bathing journal. Step into the water and it starts recording: temperature, heart rate, and every transition between soak, sauna, cold plunge, and rest.

 TRACKING 
 - Automatic water detection with temperature sampled every 5 seconds
 - Manual tracking supported with Apple Watch & iPhone
 - Continuous heart rate monitoring with smart alerts 
 - Activity timeline: soak → rest → sauna → cold plunge 
 - 13 spring types and 12 sauna types recognized
 
 DISCOVER
 - Find onsen, sento & sauna nearby on an interactive map 
 - Track your progress across all 47 prefectures of Japan 
 - Save favorites and see visit history per location 
 
 ANALYTICS (Furolog Pro) 
 - Temperature, duration & frequency trends 
 - Heart rate zones, recovery tracking & HR response 
 - Heat and cold tolerance scores 
 - Sauna HR climb profile & post-sauna recovery patterns
 - Your Perfect Session; data-driven recommendations
 
 PERSONALIZE
 - Share cards in three layouts with custom backgrounds 
 - 7 themes and 9 alternate app icons 
 - Fully localized in English and Japanese
 
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Apple Watch use in hot water is at your own risk - Apple does not recommend submerging Apple Watch in hot springs or saunas. We are not responsible for any damage to your device. 
- HealthKit access is required for heart rate monitoring. 
- Location access is used for session mapping and nearby facility discovery.
- Community data sharing is optional and anonymous. It's used to show facility water temperatures and total visits.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://www.nimikko.co.jp/en/furolog-privacy-policy