This will replace nothing for me. – UltraTuner - Ultra Precise Chromatic Tuner for Guitar, Bass, Strings, Brass and More Review

This is far from what I'd consider to be a 'good' tuner. Tracking is erratic, it doesn't identify the note being tracked correctly, it's a mess and I'd have rated it lower if I had paid for it. Otherwise, nice graphics. The in app pop ups seem to work great though. They're as annoying as I'm sure they were meant to be. Just like they do in the Blueboard app. Stop the spamming IK Multimedia - it's not eliciting the kind of attention or reaction you want.
Review by BCy2k on UltraTuner - Ultra Precise Chromatic Tuner for Guitar, Bass, Strings, Brass and More.