Swiftly,
The software allows for manual entry of weather data. A signal is much better however in it's absence the program functions well with data acquired when signal is available in close proximity to where the shooting is taking place.
Have it on my IPhone and on my IPad. Gathering up things to develop a load or two for a new NULA in 6.5x284 and have plugged several options into the Shooter App. I would highly recommend the App.
Dave
