# TruTrainer SmartLoad vs CORE Thermal Sensor

The clearest difference is rating: TruTrainer SmartLoad at 5.0 against CORE Thermal Sensor's 2.5. TruTrainer SmartLoad also leads on iOS requirement (11.0 vs 15.1). CORE Thermal Sensor's advantage is ratings volume (35 vs 1) and update cadence (every 2 months vs every 9 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

TruTrainer SmartLoad 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.

TruTrainer SmartLoad ships an update every 9 months, CORE Thermal Sensor every 2 months. The most recent releases landed on September 14, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | TruTrainer SmartLoad | CORE Thermal Sensor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/trutrainer-smartload/id1428536391/reviews)** | [2.5 (35 ratings)](https://appshunter.io/ios/app/core-thermal-sensor/id1521866309/reviews) |
| Number of ratings | 1 | **35** |
| Positive reviews | — | 15.6% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 30 MB | 55 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ross Belloni](https://appshunter.io/developer/1428536390) | [greenteg AG](https://appshunter.io/developer/1510577388) |

## What reviewers say

### TruTrainer SmartLoad

[App page](https://appshunter.io/ios/app/trutrainer-smartload/id1428536391)

Control your bicycle trainer with three distinct modes: manual load, target power, or simulated wind and grade. Customize parameters for your bike and environment, and calibrate the system for accurate resistance. The app also allows for device firmware updates.

**Highlights:** Manual load percentage control, Target power (wattage) control, Wind and grade simulation, Bike and environmental parameter customization, Calibration routine, Device firmware updates

**Features:** macOS Compatibility

**In-app purchases:** none


### CORE Thermal Sensor

[App page](https://appshunter.io/ios/app/core-thermal-sensor/id1521866309)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is TruTrainer SmartLoad free?

TruTrainer SmartLoad 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.

### Which has better reviews, TruTrainer SmartLoad or CORE Thermal Sensor?

TruTrainer SmartLoad is rated higher. TruTrainer SmartLoad averages 5.0 out of 5 from 1 ratings, while CORE Thermal Sensor averages 2.5 from 35 ratings.

### Do TruTrainer SmartLoad or CORE Thermal Sensor have ads?

Neither TruTrainer SmartLoad nor CORE Thermal Sensor shows ads.

### Which is updated more often, TruTrainer SmartLoad or CORE Thermal Sensor?

TruTrainer SmartLoad ships an update every 9 months, and CORE Thermal Sensor every 2 months. Most recently, TruTrainer SmartLoad was updated on September 14, 2026 and CORE Thermal Sensor on September 23, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*