Ortizlop ,

Won't automatically pick up the guitars sound. Have to put my phone very close to the sound hole. Had to mess around with the background noise filter in order to have it pick up the guitar. When I started tuning it the level kept bouncing back and forth and wasn't giving me an accurate reading. I'll just keep using my GuitarTuna app instead. Easy off the bat. Don't want to spend time calibrating or figuring out a tuner, rather than playing guitar.