Comparison

Hexoskin vs CORE Thermal Sensor

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

Head to head
About

Hexoskin

Monitor your health and fitness with advanced smart clothing sensors. Track ECG, respiration, and activity metrics for comprehensive wellness insights. Optimize sleep, performance, and recovery with detailed reports and fitness tests.

Highlights
  • ECG, Respiration, Accelerometer sensor tracking
  • Heart Rate, Breathing Rate, HRV monitoring
  • VO2 max and Heart Rate Recovery tests
  • Activity tracking (steps, cadence, calories)
  • Advanced sleep quality reports
  • Clinical research participant monitoring
Features
Read full description

Hexoskin is a powerful tool for monitoring your overall health and fitness journey. This highly advanced and widely respected smart clothing has been scientifically validated and used in over 200 publications by top universities, institutions, and innovative organizations. With the new Hexoskin Application, you can take control of your wellness by continuously tracking your health condition from the embedded smart clothing ECG, Respiration, and Accelerometer sensors. The Hexoskin App is compatible with all Hexoskin Smart Garments collections for Men, Women, Teenagers, and Children. The smart clothing is machine washable and comfortable for working out, sleeping, or going about your daily activities. Whether you’re training or just want to check on your vitals during the day, the Hexoskin App allows to visualize metrics such as ECG, Heart Rate, Breathing Rate, Acceleration, Heart Rate Variability, Maximum Heart Rate, Resting Heart Rate, Heart Rate Recovery, Tidal Volume, and VO2 max. The Hexoskin App also provides contextual activity tracking, annotation features, and reporting with a range of metrics including movement intensity, steps, cadence, distance, energy, and calories burned. Hexoskin also offers advanced sleep reports to better understand your sleep quality and optimize your rest. The Hexoskin App provides free fitness tests to get reports on important indicators of your general health, such as VO2 max, Resting Heart Rate, and Heart Rate Recovery. The App even reports Heart Rate Variability (HRV), a great indicator of your stress and fatigue to avoid overtraining, and injuries while keeping your mental health in check. The Hexoskin App also provides advanced features to easily monitor participants and cohorts for clinical research and harness the benefits of Hexoskin’s state-of-the-art technology. Ready to take control of your health and fitness journey? Download and try the Hexoskin App today!

About

CORE Thermal Sensor

This app continuously monitors your core body temperature and thermal strain, providing critical data for heat training and optimal race performance. It helps athletes of all levels improve their training and achieve better results.

Highlights
  • Continuous core body temperature monitoring
  • Real-time Heat Strain Index
  • Heat Zones for training and racing
  • Heat Training Load and Adaptation Score
  • Passive heat training tracking
  • Data trends and historical analysis
  • Connectivity with sports devices
Features
Read full description

The CORE Thermal Sensor accurately measures your core body temperature and thermal strain on your body – continuously and non-invasively. Thermal data and insights are critical for facilitating safe and effective heat training and for performing optimally on race day. Designed for athletes at all levels, CORE will help to improve your training and performance in your personal adventures or races. IMPORTANT: The CORE app is designed to work with the CORE device which you can order at www.corebodytemp.com Here's how it works: • Set up your CORE sensor: connect your heart rate monitor and sports devices for optimal sensor use. • Measure your thermal vitals during training: mount the newly designed clip on your heart rate strap and snap in the CORE sensor. Shake the sensor to wake it up, wear it and track your thermal data. • Core body temperature: the interior temperature deep in your body, including organs and other tissues. A critical measure during sports, it can reach up to 40°C (104°F) during vigorous activity in hot environments. Be aware that hotter is not better – cooler is faster. • Heat Strain Index: A combination of your core body temperature and skin temperature representing the thermal strain on your body. The real-time feedback on how hard your body is working to stay cool, delivering a value from 0 (no heat strain) to around 10 (extremely high heat strain). • Heat Zones: Your Heat Strain Index divided into easy-to-use zones. Heat Zone 3 will likely lead to a performance loss, BUT it is the needed stimuli to create adaptations in your body. During heat training, strive for time in heat zone 3. During racing, stay cool and prevent a performance loss by staying in heat zone 1 or 2. • Heat Training Load: a cumulative daily metric of the heat strain on your body. A daily value of 10 out of 10 indicates ideal contribution to heat adaptations. More is not always better! • Heat Adaptation Score: Track your heat adaptations over time with effective heat training. Get a heat champion to perform best in the heat. Long-term heat training will most likely lead to improvements also in cool conditions. • Add your passive heat training: Supplementing your active heat training or general training with passive heat exposure in a sauna or hot bath. You can track your sessions in the app manually, contributing to your heat adaptation score. NOTE: do NOT take your CORE sensor into the sauna or hot environments. What else you can do in the CORE app: • Dig into the details: See a breakdown of your thermal data, and even see trends across days, weeks and months. • Share your CORE metrics with your friends through the social sharing feature, earning more kudos and likes • Connect your connectivity accounts (e.g. Garmin) to directly synchronize your data after the training. • Update your sensor to the latest firmware ensuring having the best sensor functionality. Note: CORE provides products and services designed for general fitness and training purposes. For accurate measurement readings during sports, a connection to a heart rate monitor is necessary. CORE products and services are not medical devices, not intended to treat or diagnose any disease, and should not be used as a substitute for professional medical advice, diagnosis or treatment. All content available through CORE products and services is for general informational purposes only.

Screenshots

Hexoskin1 screens
CORE Thermal Sensor4 screens

Verdict

The call

The clearest difference is review sentiment: Hexoskin at 60% against CORE Thermal Sensor's 19%. On price, update cadence, ads and in-app purchases 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 30, 2026 and October 15, 2026 respectively.

Scorecard1 real difference · 9 level
Hexoskin versus CORE Thermal Sensor: the parameters behind the verdict, then further details
ParameterHexoskinCORE Thermal Sensor
PriceFreeFree
Rating—2.5 (35 ratings) — better
Positive reviews60.0% of reviews — better18.8% of reviews
Number of ratings—35 — better
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.615.1 — better
Further details — not scored
Size77 MB55 MB
Age rating4+4+
DeveloperCarrégreenteg AG

Customer experience

Hexoskin

Written reviews10 reviews
Positive60.0%
Neutral0.0%
Negative40.0%

CORE Thermal Sensor

All ratings35 ratings
Positive22.9%
Neutral20.0%
Negative57.1%
Written reviews48 reviews
Positive18.8%
Neutral25.0%
Negative56.3%

In-app purchases

None

Hexoskin

No in-app purchases

None

CORE Thermal Sensor

No in-app purchases

Questions

Is Hexoskin free?
Hexoskin is free to download, with no in-app purchases.
Is CORE Thermal Sensor free?
CORE Thermal Sensor is free to download, with no in-app purchases.
Do Hexoskin or CORE Thermal Sensor have ads?
Neither Hexoskin nor CORE Thermal Sensor shows ads.
Which is updated more often, Hexoskin or CORE Thermal Sensor?
Hexoskin ships an update every 2 months, and CORE Thermal Sensor every 2 months. Most recently, Hexoskin was updated on September 30, 2026 and CORE Thermal Sensor on October 15, 2026.

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