No app use for the things you describe Curtis, the C'dale computer I have on my bike shows calories used per ride. Knowing what little I do about physiology I doubt that just inputting my weight and male/female, would be enough to accurately measure the calories burned. I could well be wrong but it just does not seem to be correct from what I remember long ago, in a university, far, far away in a physics class doing bomb calorimeter labs.
As long as I continue to drop weight at a safe rate and lab work is good it is enough for me and my feeble little brain.
Bill
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Semper Fi, USMC, 1975-1977
I Can Do All Things Through Him, Who Gives Me Strength. Philippians 4:13