# CORE Thermal Sensor vs circady

The clearest difference is iOS requirement: CORE Thermal Sensor at 15.1 against circady's 18.6. On price, ads, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | CORE Thermal Sensor | circady |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (35 ratings)](https://appshunter.io/ios/app/core-thermal-sensor/id1521866309/reviews)** | — |
| Number of ratings | **35** | — |
| Positive reviews | 18.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free | — |
| Size | 55 MB | 12 MB |
| Requires iOS | **15.1** | 18.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 17+ |
| Developer | [greenteg AG](https://appshunter.io/developer/1510577388) | [Markus Kant](https://appshunter.io/developer/6778095141) |

## What reviewers say

### 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


### circady

[App page](https://appshunter.io/ios/app/circady/id6778095139)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CORE Thermal Sensor free?

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

### Is circady free?

circady is free to download, with no in-app purchases.

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

Neither CORE Thermal Sensor nor circady shows ads.

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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.*