1. app. Cash
Price: $999
And finally, the number one in our list of top 13 best, most expensive apps for iPhone in 2017. This app is from the business category, and it is available in English, Arabic, French, German, Italian, Polish, Spanish, which is very impressive. The only description you get is “stylish cashier system for all purposes,” but business people will definitely know how to use it in the best possible manner.

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