Hi and thank you for your interest in this app.
No, I did not make comparison tests with other apps (sorry I only use this one), I just made it simple for users to compare using their personal usage.
The application does record battery consumption (this is an old feature added back in 2021), and you can get the battery level graphic for all the tracks you record.
You'll see that the battery consumption greatly depends on how you use the app. When screen is on, the consumption is quite high. The app's "Explorer mode" does add approximately 1% per hour of battery usage.
On the other hand, screen off in airplane mode, the consumption of the device is less than 1% per hour (Galaxy S9).
If you make tests, be sure to start all of them from a full charge (or identical charge level, as it as a non negligible impact).
Hope it helps.
Ps I've attached a typical battery/network profile recorded by the app, and how the consumption is reported for recorded tracks.