Write iOS Swift 4.2 Code for Subscription based in-app purchase

I want you to write Swift 4.2 code for the below subscription's in-app purchases.

1) Monthly

2) Quarterly (3 months)

3) 6 Months

4) Yearly

5) One Time Purchase

i) Use your own developer account and in-app purchase bundle IDs to test the above.

ii) We already have this implemented and working, but we want to make it better in terms of coding.

iii) There should be a method is_subscribed(), if I call this method it should tell me if the user is subscribed or not. This data should be fetched directly from Apple.

iv) There should be a method get_subscription_date() to know the date of expiry of this user. This data should be fetched directly from Apple.

v) Your code should be clean and properly commented to make it easily understandable.

vi) We attached the sample design, as we don't care about the design, we want the coding to be good.

vii) When the app launches it should check in the background if the user is subscribed or not and get the subscription ending date.

*** We already have the attached design working, we just want to have a better code from you. We won't share our code, just to have a different idea from you.

Share your previous subscription-based in-app purchase work, if you don't share any screenshots or app links, your bid will be immediately ignored.

Best of luck

iPhone Mobile App Development Swift iPad

Project ID: #37273417

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