No, you didnt indicate you were changing inputs. And, its not that I have any faith in tech, its just that in this case it truly is simply a math problem in the background…in order to get a different result, either the “formula” needs to change, or the inputs change. I dont use the hornady app, but unless it was updated between your data points the formula used to arrive at a solution didnt change. Do you have any data (weather, wind, elevation, etc) set to pull from the internet? Or does it revert to a saved set if data when you close the app? Either of those would affect a solution if a wx update had a different wind, different da from atmospheric pressure, etc. i do know the hornady app will give you different elevation solutions based on wind direction, so thats a possibility. I also dont know how that app works sharing profiles…does it use all the same data or does it use different gun info, diff weather and other settings on your buddies app? Again, that would affect solution. Usually these apps are good, with any problems being an input issue 99.9% of the time, even when you dont think it is.