Implement iOS Subscription in-app purchase model

I have a full running iOS iPad application that has been in the app store for a few years now. I wanna change the business model and implement a subscription based model. Since Apple revealed at the WWDC 2016 that almost all Apps will now be available for using this feature (and not only magazines) i thought it was perfect to finally get it for my app.

The app is a danish POS system for the iPad, running in multiple stores.

Your job, would be to implement the in-app purchase feature of the subscription model. Users should have 3 options:

1 month

3 months

1 year

You need to implement everything regarding the in-app feature + the checking of when the subscription expires and has to be renewed.

HOWEVER! The app is free to use at first! When the app has registered that the customer has sold for more than 100.000 DKK, it would require the subscription to continue functioning. I myself will make this check, so all you need to do is to include a "hook" for me. Some method i can call like "requireSubscription" that i will call when the app needs to require a subscription. Behind that method, you should do all the work in regards to the in-app purchasing if possible.

I have made the entire app myself, so i obviously know programming, but with my day job i simply don't have the time to implement this feature myself.

I will obviously be available during the development process to answer any questions and provide you with any information you might need. Obviously i would like you to separate your code as much as possible from the main code-base. I am using GIT so i will review all code you make before it is pushed into the branch.

So, in short - i need someone to implement in-app purchase in the form of subscriptions + the detection of when it runs out + renewal for three different subscription tiers.

Any questions feel free to ask! :-)

Cocoa iPad iPhone Objective C

Project ID: #9544529

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