Comparison

CORE Thermal Sensor vs Hexis Live

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

Head to head
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.

About

Hexis Live

This app creates personalized nutrition plans for athletes based on their unique needs and daily activity. It uses intelligent algorithms to calculate energy requirements minute-by-minute, synchronizes with training data, and provides real-time insights for optimal performance and recovery.

Highlights
  • Carb Coding™ for individual needs
  • On-demand training and wearable sync
  • Intra-workout fuelling guidance
  • Personalized calories and macros
  • Live energy insights
  • Flexible meal patterns
  • Extensive meal logging database
Features
Read full description

EVERY ATHLETE IS UNIQUE You’re unique, and so are your fuelling needs. Hexis provides an intelligent, personalised fuelling plan that adapts to each day, proven to help you perform. THE MOST ADVANCED – THE EASIEST TO USE Key Features Include: CARB CODING ™ Your fuelling needs aren’t the same as anyone else’s. Hexis’ intelligent Carb Coding™ system considers billions of variables to calculate your individual carbohydrate and energy requirements, minute by minute. With Hexis, you’ll optimise your training, maximise your recovery and drive the adaptions you need to succeed. ON-DEMAND TRAININGPEAKS & WEARABLE SYNC Sync your fuelling plan and training plan for the most powerful, accurate fuelling predictions. INTRA WORKOUT FUELLING It’s not easy to know what – and when – you should eat. But with Hexis, you don’t need to worry. There’s no guesswork, no confusion. Your personalised plan is easy to follow, with visual cues to help you get it spot on. PERSONALISED KCALS & MACROS Tailor your fuel plan to your performance and body composition goals, whether you aim to lose fat, maintain weight, or gain muscle Hexis will have you performing at your true potential. LIVE ENERGY Get minute-by-minute insights into your energy, ensuring you are on top of your fuelling and recovery needs. FLEXIBLE MEAL PATTERNS Simplify fuel planning with customisable meal patterns designed for any schedule or preference. MEAL LOGGING Log your meals effortlessly from a database of over a million foods.

Screenshots

CORE Thermal Sensor4 screens
Hexis Live4 screens

Verdict

The call

The clearest difference is update cadence: Hexis Live at fortnightly against CORE Thermal Sensor's every 2 months. Hexis Live also leads on rating (2.8 vs 2.5) and review sentiment (34% vs 16%). On price, ratings volume, 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.

ReceptionRating · Positive reviews · Number of ratings

Hexis Live holds the better App Store score, 2.8 against 2.5. Both are backed by a comparable volume of ratings — 35 and 27 respectively. Written reviews point the same way: 16% of CORE Thermal Sensor's written reviews are positive against 34% of Hexis Live's.

UpkeepUpdate frequency

CORE Thermal Sensor ships an update every 2 months, Hexis Live fortnightly. The most recent releases landed on September 23, 2026 and September 21, 2026 respectively.

Scorecard3 real differences · 7 level
CORE Thermal Sensor versus Hexis Live: the parameters behind the verdict, then further details
ParameterCORE Thermal SensorHexis Live
PriceFreeFree
Rating2.5 (35 ratings)2.8 (27 ratings) — better
Positive reviews15.6% of reviews34.5% of reviews — better
Number of ratings35 — better27
Update frequencyEvery 2 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better16.4
Further details — not scored
Size55 MB77 MB
Age rating4+4+
Developergreenteg AGApplied Behaviour Systems Ltd.

Customer experience

CORE Thermal Sensor

All ratings35 ratings
Positive22.9%
Neutral20.0%
Negative57.1%
Written reviews32 reviews
Positive15.6%
Neutral25.0%
Negative59.4%

Hexis Live

All ratings27 ratings
Positive37.0%
Neutral3.7%
Negative59.3%
Written reviews58 reviews
Positive34.5%
Neutral10.3%
Negative55.2%

In-app purchases

None

CORE Thermal Sensor

No in-app purchases

None

Hexis Live

No in-app purchases

Questions

Is CORE Thermal Sensor free?
CORE Thermal Sensor is free to download, with no in-app purchases.
Is Hexis Live free?
Hexis Live is free to download, with no in-app purchases.
Which has better reviews, CORE Thermal Sensor or Hexis Live?
Hexis Live is rated higher. CORE Thermal Sensor averages 2.5 out of 5 from 35 ratings, while Hexis Live averages 2.8 from 27 ratings.
Do CORE Thermal Sensor or Hexis Live have ads?
Neither CORE Thermal Sensor nor Hexis Live shows ads.
Which is updated more often, CORE Thermal Sensor or Hexis Live?
CORE Thermal Sensor ships an update every 2 months, and Hexis Live fortnightly. Most recently, CORE Thermal Sensor was updated on September 23, 2026 and Hexis Live on September 21, 2026.

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