Comparison

Sauna Record vs ThermaSesh

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

ThermaSesh

Enhance your hot/cold exposure routines with this app. It tracks your wellness journey, monitoring time and heart rate via Apple Watch and HealthKit. Log sessions, add notes, and set reminders with the iPhone app.

Highlights
  • Hot/cold exposure routine enhancement
  • HealthKit integration
  • Apple Watch heart rate monitoring
  • Session logging and notes
  • Session reminders
  • Automatic activity recording
Read full description

ThermaSesh is the biggest advancement in wellness since the invention of Tae Bo. Some have even said it’s better than putting cucumbers on your eyes. Enhance your hot/cold exposure routine with ThermaSesh, designed to support your wellness journey. ThermaSesh uses HealthKit to monitor your time logged and heart rate activity using the Apple Watch app. View all sessions, add notes, and set notifications for your sessions using the accompanying iPhone app. ThermaSesh is easy to use, with a simple interface that supports your temperature-based activity. ThermaSesh links with the Health app, automatically recording your activities and keeping you on track toward your wellbeing goals.

Screenshots

Sauna Record4 screens
ThermaSesh4 screens

Verdict

The call

The clearest difference is price: ThermaSesh at Free against Sauna Record's $3.99. ThermaSesh also leads on rating (4.6 vs 1.0) and ratings volume (78 vs 1). Sauna Record's advantage is iOS requirement (15.0 vs 17.6). On update cadence, ads, in-app purchases and device support 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

CostPrice · In-app purchases · Ads · Monetization

ThermaSesh is free to download; Sauna Record costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

ThermaSesh holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: ThermaSesh has 78 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 55% of Sauna Record's written reviews are positive against 72% of ThermaSesh's.

UpkeepUpdate frequency

Sauna Record ships an update fortnightly, ThermaSesh every 2 weeks. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 4 level
Sauna Record versus ThermaSesh: the parameters behind the verdict, then further details
ParameterSauna RecordThermaSesh
Price$3.99Free — better
Rating1.0 (1 ratings)4.6 (78 ratings) — better
Positive reviews54.5% of reviews72.2% of reviews — better
Number of ratings178 — better
Update frequencyFortnightlyEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPod, Apple Watch — betteriPhone, Apple Watch
Requires iOS15.0 — better17.6
Further details — not scored
Size90 MB11 MB
Age rating4+4+
Developerkoichi soneharaDaniel Hogan

Customer experience

Sauna Record

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews22 reviews
Positive54.5%
Neutral9.1%
Negative36.4%

ThermaSesh

All ratings52 ratings
Positive90.4%
Neutral3.8%
Negative5.8%
Written reviews18 reviews
Positive72.2%
Neutral11.1%
Negative16.7%

In-app purchases

None

Sauna Record

No in-app purchases

None

ThermaSesh

No in-app purchases

Questions

Is Sauna Record free?
Sauna Record costs $3.99, with no in-app purchases.
Is ThermaSesh free?
ThermaSesh is free to download, with no in-app purchases.
Which has better reviews, Sauna Record or ThermaSesh?
ThermaSesh is rated higher. Sauna Record averages 1.0 out of 5 from 1 ratings, while ThermaSesh averages 4.6 from 78 ratings.
Do Sauna Record or ThermaSesh have ads?
Neither Sauna Record nor ThermaSesh shows ads.
Which is updated more often, Sauna Record or ThermaSesh?
Sauna Record ships an update fortnightly, and ThermaSesh every 2 weeks. Most recently, Sauna Record was updated on November 7, 2026 and ThermaSesh on November 3, 2026.

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