Very nice!
Ive found this to be a satisfactory tuner app! I keep it on "very sensitive", and it seems to be accurate. Im not sure how well it would perform for playing scales and such with a tuner, but for just tuning my instrument before playing its excellent. I also enjoy the different backgrounds they offer. I certainly recommend it!
Shushumushu about
Tuner by Piascore, v2.4.0