Apps similar to PitchBlitz include TuneCrack, which is free. Other options are Pitch Grid Test. Between them they cover Mac and Windows.
TuneCrack stands for: Crack the tuning problem. The importance of tuning is often underestimated. However, tuning is a necessary step for every performance. TuneCrack has exercises to improve your listening skill and your pitch transfer skill.
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The Pitch Grid Test assesses your relative pitch sense with a relative pitch indicator, which shows your pitch-distance recognition ability in cents. Your answering speed is also measured: an important feedback for relative pitch training.
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