I have found that the Nightforce, Shooter(iPhone), Ballistic FTE(IPhone), and BOTW all produce identical drop data with the same inputs. They all match the output of my G7 BR2
Rangefinder. They all seem to use the same algorithm. The drop data matches the actual shooting results out to 1000+ with two different rifles. I'm partial to Shooter , and use itin the field when I'm not using my G7 BR2.