simple in-app purchase app

This project received 13 bids from talented freelancers with an average bid price of $84 USD.

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Hi ,

I want simple in app purchases app , storyboard , it contains 2 views

the first view have label view contains this word : you have 0 gems .

and one button that have word : get 10 gems , when click it , it make payment of [url removed, login to view] with sandbox and after that it store the 10 gems on the software and display it in the labelview .

now in the second view it have button with title (eat 1 gem ) .

once clicked the value of the gems drop one gem , note that when close and open the app the gems counted correctly .

very important notes:
you need to show the correct gems left , if the user installs the app in other device .

you make the code comments , here what i want you to show me :

// when you make sure that he make the payment and change the gems count to the current count + 10 .
// when you drop the gems values .
// the place you store the value , please make it simple , do not use hard stuff , nsdefualts will be enough .
// the place where i change the project indentifier .

i will pay $30 for this .

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