I’ve used just about every ballistic calculator app out there, and have been using Ballistic and Ballistic:AE since it first came out in original guise (original and FTE), and have also been using a Kestrel 5700 Elite for a year and a half. The Kestrel does include more degrees of freedom in its solutions, but Ballistic:AE is far more user friendly. With good data inputs AE and the 5700 are within 0.1 MRAD of each other. I mainly use the Kestrel for prepping at matches, and it’s also a great reference tool for learning to read wind. But in hunting scenarios, while I often have the Kestrel with me, I nearly always use a DOPE card (and AE if I have time). I zero for a decent PBR, and dial beyond that.