# mainTrack vs CORE Thermal Sensor

The clearest difference is review sentiment: mainTrack at 89% against CORE Thermal Sensor's 19%. mainTrack also leads on rating (4.6 vs 2.5) and update cadence (fortnightly vs every 2 months). CORE Thermal Sensor's advantage is in-app purchases (none vs 4). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. mainTrack sells 4 one-off in-app purchases. CORE Thermal Sensor asks for nothing beyond the download.

mainTrack holds the better App Store score, 4.6 against 2.5. Both are backed by a comparable volume of ratings — 59 and 35 respectively. Written reviews point the same way: 89% of mainTrack's written reviews are positive against 19% of CORE Thermal Sensor's.

mainTrack ships an update fortnightly, CORE Thermal Sensor every 2 months. The most recent releases landed on October 5, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | mainTrack | CORE Thermal Sensor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (59 ratings)](https://appshunter.io/ios/app/maintrack/id1447308380/reviews)** | [2.5 (35 ratings)](https://appshunter.io/ios/app/core-thermal-sensor/id1521866309/reviews) |
| Number of ratings | **59** | 35 |
| Positive reviews | **88.5% of reviews** | 18.8% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 28 MB | 55 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Christiano Gontijo](https://appshunter.io/developer/1447308379) | [greenteg AG](https://appshunter.io/developer/1510577388) |

## What reviewers say

### mainTrack

[App page](https://appshunter.io/ios/app/maintrack/id1447308380)

This app helps cyclists meticulously track their bike and component usage. It provides timely service reminders and records all maintenance performed, ensuring your gear is always in top condition. Connect to Strava to automatically update your bike's mileage.

**Highlights:** Track bike and component usage, Service reminders, Record service history, Strava activity synchronization, Component assignment to bikes, Periodic maintenance planning, Cross-device data synchronization

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee | $1.99 | one-time |
| Snack | $3.99 | one-time |
| Lunch | $7.99 | one-time |
| Dinner | $13.99 | one-time |


### 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 mainTrack free?

mainTrack is free to download, with in-app purchases available.

### Is CORE Thermal Sensor free?

CORE Thermal Sensor is free to download, with no in-app purchases.

### Which has better reviews, mainTrack or CORE Thermal Sensor?

mainTrack is rated higher. mainTrack averages 4.6 out of 5 from 59 ratings, while CORE Thermal Sensor averages 2.5 from 35 ratings.

### Do mainTrack or CORE Thermal Sensor have ads?

Neither mainTrack nor CORE Thermal Sensor shows ads.

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

mainTrack ships an update fortnightly, and CORE Thermal Sensor every 2 months. Most recently, mainTrack was updated on October 5, 2026 and CORE Thermal Sensor on October 15, 2026.

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