I got this working great on OSX thanks to the Homebrew formula. I have used two apps for iOS for timing (Hairspring & Watch Tuner) and they both seem very accurate with observed results as well as agree with each other. The s/d seems to vary more with tg however using the same mic setup and generally seems to report slower than the two iOS apps. Is there a technical reason why the timing doesn't seem as stable on tg? (sound card or OS timing limitations?). It seems they would apply to iOS as well.. otherwise really looking forward to the continued development of this. Nice job!