Sauna Record vs Sanokuni
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sauna Record
Track your sauna sessions, water baths, and rest periods with detailed heart rate and environmental data. Analyze your records to optimize your sauna experience for better health and well-being. Integrates with Apple Watch and HealthKit for comprehensive health monitoring.
- Record sauna, water bath, and rest times
- Track heart rate and estimated sweat volume
- Save heart rate data to HealthKit
- Sauna activity calendar and vibration notifications
- Record sauna facility details and temperatures
- Track weight, blood pressure, and BMI
- Backup and share sauna records
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Use your Apple Watch to record your sauna. Sauna Record records the time and heart rate for each set of sauna, water bath, and rest, and the estimated sweat volume in the sauna. By entering a sauna based on time and heart rate, you can enter a sauna in a healthy way. A pleasant sauna, water bath, and rest vary depending on the facility, season, and your own condition. The sauna record is used to record the time and heart rate, and finally, the temperature of the sauna room, the temperature of the water bath, the temperature of the outside air, and whether there is a wax or aufguss, etc. are entered. By looking at the recorded information, you will know what kind of sauna and how to enter the sauna is best for you and how to get closer to a better body condition. The following functions are available. Record the time and heart rate of each sauna, water bath, and rest. Save heart rate data to health care Heart rate graphing Sauna activity calendar Vibration notification function for the set time. A function that vibrates to notify the user according to the set heart rate A function that calculates the estimated amount of perspiration based on the set perspiration rate. A function to check the record of all past saunas entered by year, month, and day. Record the facilities and notes of saunas you have entered. Register your favorite saunas. Record whether or not you have been to a sauna with or without a löyly or aufguss. Record your evaluation of each sauna. Record the temperature of each sauna. Record your weight and blood pressure. BMI measurement based on height Record backup function Measured records can be viewed on the iPhone. Records can also be shared as images or text. We hope this application will contribute to the hot bath industry. Notes This app integrates with the HealthKit health app and uses heart rate data. The values in the app are for reference only. Please enjoy the sauna with your physical condition first. Please wear a non-metallic belt, cover the sauna with your hand, or apply a cold towel with water to prevent the AppleWatch from getting hot. Please use Apple Watch in the recommended environment.
Sanokuni
Track your sauna sessions, heart rate, and recovery to understand your body's response. Discover personalized routines and monitor sleep quality with detailed data analysis. Earn badges and find new sauna facilities.
- Record sauna, cold bath, and rest sessions
- Visualize heart rate and ANS performance
- Analyze sleep quality after sauna
- Track daily recovery score
- Discover over 5,000 sauna facilities
- Earn session-based stamps and badges
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Sync with SAWATCH and visualize your "Totonoi" with data. A sauna app for sauna lovers who want to take sauna more seriously. Features of "Sanokuni" — an app that makes sauna more scientific. ■ Record your sessions and discover your own "Totonoi" By connecting with SAWATCH, the app automatically logs not only your time in sauna, cold bath, and rest, but also your heart rate changes. You can see how safely you reached Totonoi each day. Reviewing your heart rate movement and ANS Performance (your autonomic nervous system response) for each scene helps you understand how your body responds and explore your personal Totonoi. With the Premium plan, you can also see detailed data per set and compare changes between sets to discover the way that suits you best. ■ Look back on your trends with Karte (NEW in v4.0) See your sauna sessions, sleep, Recovery Score and steps together over the period you choose. Along with changes from the previous period, Karte shows what the sessions with higher T-Flow Scores and sleep scores had in common. Find the routine that suits you from your own records. With the Premium plan, you can look back over six months, one year, all time or any period you choose, and compare yourself with people of your age group and gender, or with people who score high. ■ Check daily condition with a score By wearing SAWATCH-3 in everyday life, you can see your "Recovery Score" each morning, visualizing how much your body has recovered. Sometimes your body cannot fully recover overnight even with enough sleep, depending on the previous day's activity and stress. Choose how you take sauna based on your condition, or look back at the next day's score to see how sauna affected you. Use it as a new compass for finding your own way to enjoy sauna. ■ Check sleep quality after sauna with data You can sync sleep data automatically via supported SAWATCH models. You can also note factors that may affect your sleep, making it easier to reflect on "what affects my sleep." If you have a sauna session recorded, it links with your sleep data so you can analyze how sauna affects your sleep. ■ Earn Stamps the more you visit The more sauna sessions you log, the more Stamps (badges) you can earn under various conditions — number of facilities visited, repeat visits to the same sauna, total records created, or logging on event days such as "Sauna Day" (March 7). Some conditions are tricky, so give them a try. When you earn one, you'll have something to brag about with your sauna friends. ■ Find more than 5,000 sauna facilities across Japan Not sure which sauna to try in an unfamiliar area? "Sanokuni" uses GPS to show you nearby sauna facilities. Find everything from popular spots to hidden gems. ■ All core features are free! We want as many people as possible to enjoy sauna — and we want sauna facilities, a piece of health infrastructure, to thrive for the long run. That's why the core app is free. The Premium plan offers more detailed data, exclusive Stamps, and more ways to enjoy sauna. ■ Website https://sanokuni.com/ ■ SAWATCH Store https://store.100plus.co.jp/ ■ Twitter https://x.com/100plusSanokuni ■ FAQ & Contact https://info.sanokuni.com/en/faq We hope "Sanokuni" will be loved by everyone, and that through sauna we can build a brighter, more cheerful, healthier society.
Screenshots
Verdict
The clearest difference is price: Sanokuni at Free against Sauna Record's $3.99. Sanokuni also leads on rating (5.0 vs 1.0) and update cadence (every 2 days vs fortnightly). Sauna Record's advantage is in-app purchases (none vs 6) and review sentiment (55% vs 45%). On ratings volume, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Sanokuni is free to download; Sauna Record costs $3.99 up front. Sanokuni sells 6 in-app purchases, starting at $1.99 per month. Sauna Record asks for nothing beyond the download.
Sanokuni holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews complicate that: 55% of Sauna Record's written reviews are positive against 45% of Sanokuni's, so the app with the better star average is not the one people write more warmly about.
Sauna Record ships an update fortnightly, Sanokuni every 2 days. Both last shipped on November 3, 2026.
| Parameter | Sauna Record | Sanokuni |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 1.0 (1 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 54.5% of reviews — better | 45.5% of reviews |
| Number of ratings | 1 | 2 — better |
| Update frequency | Fortnightly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Freemium — better |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 90 MB | 101 MB |
| Age rating | 4+ | 4+ |
| Developer | koichi sonehara | 100plus Inc. |
Customer experience
Sauna Record
Sanokuni
In-app purchases
Sauna Record
No in-app purchases
Sanokuni
- 1 Month Plan$1.991 Month
- 1 Year Plan$19.991 Year
- 20 Sanokuni Coins$0.49
- 50 Sanokuni Coins$1.99
- 100 Sanokuni Coins$2.99
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- 300 Sanokuni Coins$9.99








