5 of the Most Expensive Apps on iTunes

VIP Black is a premium app geared toward millionaires (and perhaps even billionaires) who want to discover and enjoy the most luxurious events and services around them. Similar to how you might use a regular location-based app like Yelp or Foursquare, YIP Black uses your location to find the highest quality art/literature, bars, clubs, butlers, cars, cinemas, events, and experiences near you.

Through partnerships with participating venues, members receive special VIP treatment at their event or venue of choice, including things like complimentary upgrades, gifts, priority access, welcome packages and more. Concierge teams are also available so that anything and everything can be outsourced — from getting the dry cleaning done, to booking a private jet.

The app claims to update its partners and partner privileges regularly, however, it hasn't seen an update since May of 2017. Despite remaining online in the App Store, it's unclear if the VIP Black app has been abandoned.

Download VIP Black for iOS

CyberTuner is a professional piano tuning app that will cost you more than what many average to good electronic keyboards cost. This app has been in development for years, including one year of vigorous testing by music experts around the world.

Designed for professional tuners who already know the basics and own their own equipment, the CyberTuner app combines functions programmed by a Registered Piano Technician with an intuitive layout. Technicians have the freedom and flexibility to use the app to tune pianos exactly the way they want with incredible accuracy.

The CyberTuner app is updated regularly for the latest iOS versions and newest devices along with both new and enhanced features added to it every so often. As if the price didn't shock you enough already, users of the app will need to pay another $79.99 every year for CyberCare to get the upgrades.

Download CyberTuner for iOS

app.Cash claims to be a "stylish cashier system for all purposes." The app is designed to replace the traditional cash register to create sales transactions and receive payments. It even works offline.

Although the app can be used by practically any business that needs to collect customer data and take payments, it appears to be specifically tailored for restaurants so that servers can conveniently use a mobile device directly at customers' tables. Menu buttons are available and categorized by food and beverage types so that servers can input customers' orders directly into the app. A graphic representation of the tables can also be created and viewed to keep tracking of table numbers and their orders.

The app supports two printer models and must be updated by contacting the developer directly. It's one of the most expensive apps in the App Store at nearly $1,000, however, it claims to be cheaper than a traditional cash register system, making it perhaps an attractive option for some businesses.

Download app.Cash for iOS

DDS GP Yes! is a feature-packed iPad app created for dentists. Its main use is for helping patients gain a better visual understanding of certain dental conditions and treatments.

The app comes with 200 unique demonstrations and 37 different audio tracks geared toward dentists so that they can learn how to make the best use of the presentation-like app while in the company of a patient. It's really just an advanced tool that helps bridge the gap between the knowledgeable dentist and the uninformed patient so communication runs smoothly and the dentist has a higher chance of convincing the patient to make the best decisions for their oral health.

During the presentation, the audio plays while the corresponding visual effects are displayed (along with other active functions like the slider, drawing, treatment planning, etc.). The app, however, has not been updated since September of 2016, making it questionable to run on the most up-to-date iOS versions and devices.

Download DDS GP Yes! for iOS