Comparison

TouchGUI vs calera

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

Head to head
About

TouchGUI

Track your workouts and sleep with detailed analysis. Syncs data from smartwatches to Apple Health, including steps and calories burned.

Highlights
  • Exercise data records
  • Sleep analysis
  • Exercise analysis
  • Smartwatch data sync
  • Apple Health integration
Read full description

Provide users with accurate exercise data records, detailed sleep and exercise analysis We will connect the smart watch to sync data to Apple Health (HealthKit), including steps, sleep and calories burned

About

calera

Features
Read full description

Calera is the first solution to monitor core body temperature continuously and non-invasively. Using the same technology as CORE but being specifically designed for researchers, calera will allow real-time core body temperature monitoring and high-resolution (1 Hz) data downloading. Individually calibrated devices will make sure your measurements are of the highest accuracy. IMPORTANT: The calera app is designed to work with the calera device, which can be ordered at https://corebodytemp.com/products/core-calera-research. This app is not designed for use with the CORE sensor. 1. What does calera do? calera helps you track the core body temperature. This is the interior temperature of the body โ€“ including organs and other tissues โ€“ which can substantially differ from the skin temperature. Core temperature changes due to physiological processes such as illness, intense activity, circadian cycles, or ovulation. calera will allow you to continuously and non-invasively track this internal temperature with high accuracy during your research experiments. 2. Get access to your data at any time calera stores your data locally on the device and connects to the app to display it. If you use the app to display the temperature, the data is also pushed to a secure cloud solution, where you can view it and download it for further analysis. calera additionally comes with two unique features: the computer based Research tool and high time resolution logging mode. For more information about data storage and accessibility, please check the calera manual. 3. Why is calera different from other solutions? Before calera, only invasive methods such as rectal probes or ingestible e-pills were available for measuring the core body temperature. For the first time, calera provides an accurate, continuous, non-invasive solution for monitoring core body temperature, regardless of the activity and environment. As proof of its unique value, the consumer version of calera, CORE, is already used by UCI World Teams and top triathletes worldwide. The full list of well-known athletes, trainers and other users is available at: www.corebodytemp.com. 4. How does it work? The calera device clips onto your heart-rate monitor belt or sports bra. It can also be worn using specially designed medical-grade patches. For best results, wear calera on the same side as your smartwatch. calera supports ANT+ and works with most Garmin Connect IQ and Wahoo devices. More info: Website: https://corebodytemp.com/pages/research Privacy Policy: https://www.greenteg.com/privacy Terms and conditions: https://www.greenteg.com/terms

Screenshots

TouchGUI3 screens
calera3 screens

Verdict

The call

The clearest difference is update cadence: TouchGUI at every 6 weeks against calera's every 4 months. TouchGUI also leads on iOS requirement (9.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

UpkeepUpdate frequency

TouchGUI ships an update every 6 weeks, calera every 4 months. The most recent releases landed on October 9, 2026 and October 13, 2026 respectively.

Scorecard2 real differences ยท 6 level
TouchGUI versus calera: the parameters behind the verdict, then further details
ParameterTouchGUIcalera
PriceFreeFree
Positive reviews0.0% of reviewsโ€”
Update frequencyEvery 6 weeks โ€” betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeโ€”
DevicesiPhone, iPodiPhone, iPad, iPod โ€” better
Requires iOS9.0 โ€” better15.6
Further details โ€” not scored
Size174 MB6 MB
Age rating4+4+
DeveloperBaymore.China.Ltd.greenteg AG

In-app purchases

None

TouchGUI

No in-app purchases

None

calera

No in-app purchases

Questions

Is TouchGUI free?
TouchGUI is free to download, with no in-app purchases.
Is calera free?
calera is free to download, with no in-app purchases.
Do TouchGUI or calera have ads?
Neither TouchGUI nor calera shows ads.
Which is updated more often, TouchGUI or calera?
TouchGUI ships an update every 6 weeks, and calera every 4 months. Most recently, TouchGUI was updated on October 9, 2026 and calera on October 13, 2026.

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