CODEWITHSUNDEEP
objective-cios
Max
Max

Reputation: 1195

Find out which version of app was first installed - iOS

I want to change my app from a paid version to a free with ads. However, I don't want the people that originally paid for the app to get the ads.

I was thinking I could include a new update that has extra code that sets up some UserDefaults saying the version doesn't have ads and then do the update to the free version. But that doesn't seem like a very reliable solution.

Upvotes: 3

Views: 294

Answers (2)

Max
Max

Reputation: 1195

It seems there is no reliable method to detect whether someone paid for your app or downloaded it later when the price has been changed to free. For this reason I have decided to create two separate entries in the app store.

Upvotes: 0

Morion
Morion

Reputation: 10860

I think, it depends on minimum OS version, that your program can be run on. For iOS 5.0 and later you can try to use iCloud to store some flag about purchased version. It allows you to set this flag not only for one device, but for the user's account.

Or you can store this info in the keychain to get it later. But in this case your user will not be able to have no ADs on some other device with his(her) account.

Anyway, as far as I know, you need to create an update for your app first to write this flag anywhere. And only in some time make an update with ADs.

I will be glad to see comments if someone has another thoughts about this issue.

Upvotes: 1

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