Yeah yeah, maybe. But even before the pandemic obesity and lack of regular exercise was being portended and scare-mongered as the next great human pandemic. I'm just not sure how an app is going to motivate those who choose to live a low exertion lifestyle to change their ways, if indeed there is really any requirement for them to do so.
Then again, and to paraphrase a wise old sage "better to do than do not" and as an active triathlete I might even give this a look myself when it is released.