10 most shockingly expensive iphone apps

 The vast majority of the world won’t have much use for this app, but according to iTunes reviews, it is a must for professional piano tuners. The creator of this $999.99 app, Reyburn, has been well known in the tuning software industry for 20 years. According to the app’s iTunes page, CyberTuner is superior to other piano tuning apps because of its ease of use and clarity of functions.


2. CyberTuner – $999.99