App Store - Best way to merge a paid and free version into a free version with IAP

Question

My company currently has two applications in the app store: a full, paid version that includes two ebooks, and a "lite" version that does not include both books. We've just developed a new version of the app that instead implements the two books as IAPs, with the intention of merging the two apps into one. I'm at the point where I'd like to submit the app, and I'm not sure of the best way to proceed.

Current plan:

1. Update free app to the new version with the IAP books.
2. Rename the free version, removing the "Lite".
3. Delete the existing paid version from the app store.

Potential problems with this plan:

1. Those who've already paid for the existing full version might feel ripped off, since their version won't be receiving any of the other updates in this new version.

2. There will be a name conflict, since we want the new app to take the name of the old paid one (removing the typical "- Lite" signifier). This won't be much of an issue in the App Store if we immediately remove the paid version from the store, but can make for a confusing user experience if a user downloads the new version alongside the old paid version.

3. Along the same lines, if we delete the old paid version as soon as we upload the new free version (with the same name as the old paid version), it's easy to imagine some confused users of the old paid version deleting their existing paid version and downloading the new free version, only to realize they'd lost the books they'd already paid for, with no way of re-downloading the old paid version.

My questions:

1. From a real high level, are we handling this the wrong way? I've Googled and Googled, but I haven't been able to find much guidance on how to combine paid and free version of apps into one.

2. Is there any way for me to determine who's already purchased the paid version, and "gift" them the book IAPs in the new free version? If we thought this threw sooner we could've logged the unique IDs of all of those paid versions, but I do believe that's against the rules now anyway, correct?

3. What other sorts of issues might arise by giving the "- Lite" version the same name as the old full version?

Thanks in advance for any and all assistance or feedback.

Answer 1

We just did that with our FileApp Pro and the free FileApp. We got rid of FileApp Pro and now the new FileApp has In-App Purchases. However we wanted to have all users that bought FileApp Pro to have all In-App purchases of FileApp for free.

Here is the method we used: We are sharing flags between FileApp and FileApp Pro using the iOS’ “Keychain sharing entitlement” which allows two apps to share the same keychain data. This allows FileApp to know that FileApp Pro is installed. Then we wanted to make sure that FileApp Pro privileges remain available in FileApp through the iTunes account of the user so we used a free In-App purchase to do that. The FileApp Pro user when launching FileApp for the first time is asked to purchase a free In-App purchase so all his privileges remains across devices even if he reinstall FileApp.

You will find a complete article on our bog describing the method: http://blog.digidna.net/post/74246563623/how-to-release-a-whole-new-app-and-keep-all-things

Edit: Here's the archive link to the above post that doesn't seem to be available now: https://web.archive.org/web/20160309135133/http://blog.digidna.net/post/74246563623/how-to-release-a-whole-new-app-and-keep-all-things

Answer 2

I would think it might be best to turn the paid version to the free so at least your original paid customers are taken care of the most. Depending on your user base you could even ensure the original paid users aren't shown any ads or other restrictions by doing an intermediate release to have those users save something to user defaults. Then you could provide an update to the free version with a UIAlertView that asks them if they want the full version for free and direct them to the app store to download it. I assume you have many more free users but you would probably upset less people with this path.