CORE Thermal Sensor vs Vekta
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
Vekta
This platform uses AI and advanced models to provide personalized training and recovery insights for endurance athletes and coaches. It integrates data from various devices to offer actionable feedback and optimize performance.
- AI-driven personalized training insights
- Integrates with Garmin, Wahoo, Whoop, Oura
- Scientifically validated metrics (CP modeling, Adaptive Zones)
- Actionable feedback after every session
- Connects athletes, coaches, and sports scientists
- Performance gain and injury risk reduction data
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Dream Big with Vekta Vekta is the most advanced training and coaching platform for endurance athletes and coaches who strive for greatness. Whether you’re chasing a race win or a new personal best, Vekta harnesses cutting-edge AI and advanced performance models to transform your training and recovery data into the most personalised, actionable insights, so every session brings you closer to your goals. Key Features: Integrations. Supercharged. An all-in-one platform for all of your data sources. Garmin, Wahoo, Whoop, Oura, and more. Vekta gives you a complete, real-time picture of your performance and recovery. Scientifically Validated Metrics Vekta leverages state-of-the-art metrics, Critical Power (CP) modelling, and Adaptive Training Zones to provide deeper insights into your endurance and power potential. Track progress, optimise training, and unlock your peak performance. Unmatched Analysis & Insights Powered by proprietary AI and co-developed with elite coaches, Vekta unlocks deep performance insights, identifies opportunities for gains, and delivers clear, actionable feedback after every session. AI-Driven, Human-Centric Coaching Whether you’re a self-coached athlete or working with a pro, Vekta empowers better decision-making and collaboration. It’s the perfect fusion of expert insight and cutting-edge technology. A Connected, Motivated Community Join a vibrant network of athletes, coaches, and sports scientists. Learn, grow, and chase greatness together. Trusted by the Pros Jayco–AlUla | FDJ–Suez | Arkéa–B&B Hotels Backed by Results 12% Performance Gains 25% Reduced Injury Risk 48% Higher Consistency Download Vekta Today: Train Smarter, Push Harder, and Dream Bigger.
Screenshots
Verdict
The clearest difference is rating: Vekta at 5.0 against CORE Thermal Sensor's 2.5. Vekta also leads on update cadence (every 3 weeks vs every 2 months). CORE Thermal Sensor's advantage is ratings volume (35 vs 1) and device support (3 vs 1). On price, ads, in-app purchases and monetization model 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Vekta holds the better App Store score, 5.0 against 2.5. That said, the two scores are not equally well evidenced: CORE Thermal Sensor has 35 ratings behind it against 1, so its average is the more settled of the two.
CORE Thermal Sensor ships an update every 2 months, Vekta every 3 weeks. The most recent releases landed on October 23, 2026 and October 21, 2026 respectively.
| Parameter | CORE Thermal Sensor | Vekta |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (35 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 18.8% of reviews | — |
| Number of ratings | 35 — better | 1 |
| Update frequency | Every 2 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 55 MB | 83 MB |
| Age rating | 4+ | 4+ |
| Developer | greenteg AG | GRAIG |
Customer experience
CORE Thermal Sensor
Vekta
In-app purchases
CORE Thermal Sensor
No in-app purchases
Vekta
No in-app purchases







