This is really up to you and how well you know your users.
Like some have said, you're not being evil by making all new FEATURES to only in the paid app. Alternatively, you could make this app as full-featured as possible, and make the new app for multiple platforms only.
What do you think is the right thing to do, both for yourself (how much time and money do you have?) and your audience?
A way to promote the new app inside the old app:
- Add a button that says, "new features!" that you keep updated whenever you 1) release new bug fixes or features to either the regular or the beefed up version. This way, all users of the regular app will stay updated on whats going on in both the regular and the beefed up versions. Many of them will buy the beefed up version.
Like some have said, you're not being evil by making all new FEATURES to only in the paid app. Alternatively, you could make this app as full-featured as possible, and make the new app for multiple platforms only. What do you think is the right thing to do, both for yourself (how much time and money do you have?) and your audience?
A way to promote the new app inside the old app:
- Add a button that says, "new features!" that you keep updated whenever you 1) release new bug fixes or features to either the regular or the beefed up version. This way, all users of the regular app will stay updated on whats going on in both the regular and the beefed up versions. Many of them will buy the beefed up version.